"Experiment 8 Colligative Properties Osmotic Pressure Category Experiments Labs" Essays and Research Papers

Experiment 8 Colligative Properties Osmotic Pressure Category Experiments Labs

Title: Colligative Properties & Osmotic Pressure Background: Important terms to study from this lab assignment are colligative properties, membrane permeability and osmotic pressure. First, colligative properties are “those of a solution that depend solely on the number of solute particles present, not the identity of those solute particles. These properties include: vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure” (p. 17 lab manual). In this...

Boiling point, Distillation, Freezing-point depression 1846  Words | 7  Pages

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Colligative Properties & Osmotic Pressure

Colligative Properties & Osmotic Pressure (Lab – Chapter 13) Introduction: In this lab, we are going to observe the difference in freezing point between pure water and salt water. We will also observe the permeability of an egg shell membrane and dialysis tubing, acting in place of a human cell, when placed into a hypertonic or hypotonic solution. We will observe the changes in size, shape, and characteristic. Materials and Methods: First we begin this experiment by making an ice bath in...

Dialysis, Distillation, Egg 792  Words | 6  Pages

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Colligative Properties

 Cognitive Properties Ashley Weber Principles of Chemistry 2 Experiment 1 02/02/2015 Abstract: Several experiments were performed to observe the colligative properties. This includes the freezing point depression, and osmotic pressure. Two ice baths were made, one with pure water, the other with salt water. The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than the pure water by 2 degrees which supports the hypothesis that solutions...

Colligative properties, Concentration, Freezing-point depression 1437  Words | 5  Pages

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Collegiative Properties and Osmosis

Department of Chemistry [Colligative Properties & Osmotic Pressure] Purpose : The experiment this week had two different purposes. The first is to teach us about freezing points. This lab was designed to show us the freezing point of a pure solvent, in comparison to a solvent in a solution with a non-volatile solute. The second goal of the experiment is to teach students about osmosis. In the experiment, we got to observe osmosis as well as understand dialysis...

Freezing-point depression, Melting point, Osmosis 1346  Words | 7  Pages

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Colligative Properties Lab

Colligative Properties 202-NYB-05 (Group 06.) By: Jordan Hribar 1034044 Partner: Anthony Cuillierier Teacher: Daniel Baril Experiment Done: February 23rd, 2011 Experiment Number 2. Introduction Some of the properties unique to solutions depend only on the number of dissolved particles and not their identity. Such properties are called colligative properties. The colligative property that will be examined in this experiment will be the freezing point depression as an example...

Colligative properties, Freezing, Freezing-point depression 763  Words | 5  Pages

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LAB 4-4 labassignment

assignment, you will dissolve a sample of NaCl in water and then measure the boiling point elevation for the solution. 1. Start Virtual ChemLab, select Colligative Properties, and then select Boiling Point Elevation from the list of assignments. The lab will open in the Calorimetry laboratory with a calorimeter on the lab bench and a sample of sodium chloride (NaCl) on the balance. 2. Record the mass of the sodium chloride in the data table. If it is too small to read...

Boiling, Chemistry, Chloride 651  Words | 3  Pages

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 Experiment #1: Introduction to Experimentation Submitted by: Neann Klara M. De Jesus BS Psychology II Submitted to: Dr. Geraldine E. Tria ABSTRACT SUMMARY The first experiment done by the class was called “Introduction to Experimentation”. Its main objective is to give basic knowledge about some of the logic of experimentation. The class was divided into groups of 2. In each group there was an experimenter (E) and a subject (S). The...

Empiricism, Experiment, Hypothesis 1222  Words | 8  Pages

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An Experiment

FIRE RESISTANT BALLOON: Materials -    1 matchbox -    1 candle -    1 yellow colored balloon -    1 blue colored balloon -    Half a cup of water   Procedure: 1.    For this experiment, the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount...

Atlantic Ocean, Ice, Magnet 2181  Words | 7  Pages

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Experiment 8

Purpose This experiment shows how different concentrations of acids and bases in a solution affect its pH level. When acids and bases are combined in a solution, they neutralize each other. This means that depending on the concentration of both acids and bases in a solution, the pH will vary. A neutral pH level is 7; anything below that level is known as an acidic solution, while anything above is known as a basic solution. To find out the pH, the solutions will be diluted and tested with different...

Acid, Acid dissociation constant, Base 555  Words | 3  Pages

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Experiment 22 Title: Reactions of aldehydes and ketones Aim: The purpose of this experiment is to compare some reactions of ethanal and propanone. Introduction: We have chosen ethanal and propanone as relatively safe examples of aldehydes and ketones to illustrate their reactions in simple test-tube experiments. The reactions or properties to be investigated are as follows: A. Condensation (addition-elimination) B. Oxidation C. Triiodomethane (iodoform) reaction Requirements: ...

Acetic acid, Aldehyde, Ammonia 499  Words | 3  Pages

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The Experiment

Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus, Calamagui 2nd, City of Ilagan, Isabela baccaljoemel@yahoo.com Submitted to: Engr. Rafael S. Ramos Physics12 Professor Submitted by: Joemel L. Baccal BSEE IIA Experiments in Physics Lab Report Joemel L. Baccal Department of Electrical Engineering Isabela State University - Ilagan Campus, Calamagui 2nd, City of Ilagan, Isabela baccaljoemel@yahoo.com Abstract In...

Atom, Electric charge, Electricity 826  Words | 4  Pages

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Osmotic Pressure

within a living cell is the plasma membrane. • Hypotonic : ➢ Having a lesser osmotic pressure in a fluid compared to another fluid, as in a ‘hypotonic solution’ – compare: hypertonic and isotonic  • Hypertonic: ➢ Having a higher osmotic pressure in a fluid relative to another fluid. • Isotonic: ➢ Having the same (or equal) osmotic pressure and same water potential since the two solutions have an equal concentration of water molecules...

Cell, Cell biology, Cell membrane 813  Words | 6  Pages

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EXPERIMENT 1: REACTIONS OF ENOLATE IONS WITH CARBONYL GROUPS Aims In this experiment we used two techniques for the reactions of enolate ions with carbonyl groups. One technique used was Doebner reaction and the other technique used was Claisen-Schmidt reaction. Therefore the aim of this experiment is to synthesize trans p-methoxycinnamic acid and to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. The products would be recrystallized using ethanol...

Acid, Aldehyde, Aldol condensation 1824  Words | 6  Pages

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EXPERIMENT 5 REDOX TITRATION: TITRATION USING SODIUM THIOSULPHATE Objectives 1. 2. To prepare a standard solution of potassium iodate for use to determine the concentration of sodium thiosulphate solution accurately. To acquire the proper techniques of carrying out a titration. Introduction Redox titrations using sodium thiosulphate as a reducing agent is known as iodometric titration since it is used specifically to titrate iodine. The reaction involved is: I2 + 2Na2S2O3 I2 + 2S2O322NaI + Na2S4O6...

Chemical reaction, Chemistry, Iodine 1141  Words | 5  Pages

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Experiment 8: Acetylsalicylic Acid Experiment

Monica Perez Experiment 8: Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin, acetylsalicylic acid is an analgesic (pain reliever), which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment, we will be able to recreate...

Acetic acid, Acetic anhydride, Acetyl 1650  Words | 6  Pages

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Osmosis and Osmotic Pressure

selectively permeable, so only necessary materials are let into the cell and wastes are left out.[8] The word 'osmosis' is particular to the diffusion of water molecules into the cell. 2.) What is Osmotic Pressure? Osmotic pressure is the hydrostatic pressure produced by a solution in a space divided by a semipermeable membrane due to a differential in the concentrations of solute. Osmotic potential is the opposite of water potential with the former meaning the degree to which a solvent...

Cell, Cell wall, Membrane biology 540  Words | 3  Pages

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Experiment #8: Limiting Reactant

Experiment #8: Limiting Reactant Abstract In chemical reactions, the significance of knowing the limiting reactant is high. In order to increase the percent yield of product, increasing the limiting reactant, possibly, is the most effective. In this experiment we were able to calculate limiting reactants from the reaction of CaCl2. 2H2O + K2C2O4.H2O(aq). As a group, we obtained our salt mixture of calcium chloride and potassium oxalate, and weighed the mixture. We were able to make an aqueous...

Chemical equation, Chemical reaction, Chemical reactions 1743  Words | 6  Pages

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Lab Experiment


Chemical kinetics, Chemical reaction, Chemistry 747  Words | 4  Pages

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Experiment 2: IDENTIFICATION OF UNKNOWNS BY TLC AND MP IN COMBINATION Introduction: Thin layer chromatography (TLC) is one of the most valuable techniques in organic chemistry. This is a best method of separating and identifying mixtures of two or more compounds. The separation is accomplished by the distribution of the mixture between two phases: one that is stationary and one that is moving or mobile. Chromatography works on the principle that different compounds will have different...

Analytical chemistry, Chemical compound, Chemistry 1428  Words | 5  Pages

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Experiment: Properties of Gasses

Flyne Anderson Experiment done - 30 September 2012 Report submitted - 02 October 2012 Chemistry 111 - Experiment 4 : Properties of Gasses Purpose: The purpose of the experiment is to learn about the properties of gasses, and identify them by their physical and chemical properties by combining different elements and observing how they react with each other, and outside influences. Materials/Procedure: I gathered my materials from the material list and set up my data table. I combined the zinc...

Acid, Carbon dioxide, Chlorine 784  Words | 4  Pages

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Experiment : 1 Tittle : Preparation of bis(acetylacetonato)copper(II) complex Objective : To synthesis the bis(acetylacetonato)copper(II) complex Introduction : A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency...

Ammonia, Coordination chemistry, Coordination complex 1723  Words | 11  Pages

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Chemistry Lab 4-4

assignment, you will dissolve a sample of NaCl in water and then measure the boiling point elevation for the solution. 1. Start Virtual ChemLab and select Boiling Point Elevation from the list of assignments. The lab will open in the Calorimetry laboratory with a calorimeter on the lab bench and a sample of sodium chloride (NaCl) on the balance. 2. Record the mass of the sodium chloride in the data table. If it is too small to read, click on the Balance area to zoom in, record the reading...

Density, Gas, Gas laws 1627  Words | 5  Pages

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Discussion for Gas Law Experiment

1061: Principles of Chemistry I Gas Laws Gas Laws: Pressure, Volume, and Temperature Introduction Pressure, volume, and temperature are properties of gases that reveal their relationships when any one of them is varied. Changing the temperature of a gas may change its volume or pressure, but how? What are the mathematical relationships between these properties? Are there limits to them? Scientists have discovered through the study of properties of gases that there is indeed a theoretical limit...

Data, Gas, Ideal gas 1531  Words | 4  Pages

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process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed...

Alcoholic beverage, Boiling point, Distillation 956  Words | 5  Pages

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Osmotic Pressure

available energy per unit volume in terms of "osmotic pressure". It is customary to express this tendency toward solvent transport in pressure units relative to the pure solvent. If pure water were on both sides of the membrane, the osmotic pressure difference would be zero. But if normal human blood were on the right side of the membrane, the osmotic pressure would be about seven atmospheres! This illustrates how potent the influence of osmotic pressure is for membrane transport in living organisms...

Concentration, Diffusion, Osmosis 1294  Words | 4  Pages

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Factors Affecting Solubility and Colligative Properties

liquid solution increases solubility. But for solubility of gas in liquids, an increase in temperature decreased solubility because gas evaporates as temperature increases. 2. Effect of Pressure Pressure unlike temperature has little effect on solutions unless the solute is a gas. An increase in pressure causes greater interaction between particles of the gas and the liquid, thus, increasing solubility. 3. Nature of the Solute and Solvent Nature of both solute and the solvent affect...

Freezing-point depression, Gas, Solubility 801  Words | 4  Pages

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Lab Experiment #4

Lab 4 – Energy Sources and Alternative Energy Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 6 4 Activated Carbon 7 8 Water 7 7 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = If pyrite is added to a beaker with 100mL of water, then it will reduce the pH over 48 hours. b. Coal hypothesis = It activated carbon is...

Amorphous silicon, Energy development, Photovoltaic array 624  Words | 4  Pages

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Gas Laws Lab

1 Gas Laws Lab Guide PhET Gas Properties lab - http://phet.colorado.edu/en/simulation/gas-properties Your lab write-up for this lab will be a minimum of a 15 slide presentation created with Power point or Libre Office. Contact your instructor if you have questions about your lab assignment. Some information has been provided for you, but still needs to be included on your slides. The areas that are bolded are areas of information that need to be completed by you. Submit your lab write-up in...

Absolute zero, Entropy, Gas 1335  Words | 5  Pages

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Osmotic Pressure Report

6.3 - Graph 6.1 - Graph 6.2 * DISCUSSIONS ----------------------------------------------------------- 7 * CONCLUSION ----------------------------------------------------------- 8 * REFERENCE ----------------------------------------------------------- 9 TITLE Osmotic pressure within red blood cell. INTRODUCTION Osmosis is a passive movement of water molecules going across the partially permeable membrane. It is a very spontaneous process due to the downhill energy...

Cell, Cell biology, Cell membrane 1163  Words | 5  Pages

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osmosis and celery lab experiment

case osmosis will cause more water to move out of the cell than will move in the cell and the cell will shrink. In this case, we say that the solution is “hypertonic”. Learn more about osmosis and diffusion from Chapter 3 of your textbook. CELERY EXPERIMENT We can place celery in three different water solutions to observe the effects of osmosis on the celery stalks. Salt will serve as our solute to mix with water to make the water either hypotonic, hypertonic or isotonic. The hypotonic solution will...

Cell biology, Cell wall, Diffusion 1013  Words | 4  Pages

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Lab Cell Membrane

LAB REPORT 1 - LAB 7 CELL MEMBRANE FUNCTION Marisela Camacho Legarreta June 30, 2013 ACTIVITY 1 INTRODUCTION Be aware that all molecules have kinetic energy, which means that is an active energy that is always in motion. Molecules move in all different ways and this create an evenly distributed movement which is best known as diffusion. Diffusion is the movement of molecules from a region of their higher concentration to a lower concentration. METHODS Check the reaction of different...

Cell membrane, Concentration, Diffusion 990  Words | 4  Pages

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Physical Properties of Organic Molecules Experiment

 Physical Properties of Organic Molecules Abstract Identifying the physical properties of compounds can be useful in several ways. It helps us to determine the structure of certain compounds, the purity of substances and if a substance is not pure we can figure out how to separate contaminating substances from a compound. In this experiment, I learned how to determine a solid’s melting point and why some melting point ranges may be broader...

Chemical compound, Chemical polarity, Chemical substance 802  Words | 5  Pages

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Experiment 32

CHEM 101L GENERAL CHEMISTRY LAB FALL 2012, Friday 1:00 PM-3:50 PM Professor: Dr. Rostislav Bukasov Office: 7107 Office hours: Monday 5:00-6:00 PM; Tuesday 9.00-10.00 AM; Wednesday 11:00 AM–12:00 PM; Thursday 4.00-5.00 PM; Friday 10.00-11.00 AM Phone: 7-7172-706665 E-mail: rostislav.bukasov@nu.edu.kz Teaching Assistant: Zhanar Kassenova E-mail: zhanar.kassenova@nu.edu.kz Office : 8527 Office hours: Tuesday: 11.00 - 12.00 pm; Thursday: 9.00 am - 10.00 am Course Overview Chemistry...

Academic dishonesty, Chemical reaction, Chemistry 1671  Words | 6  Pages

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Lab Experiment: Ionic Reactions

Edward Dickson CHE101 DS-01 Experiment Date 7/21/2013 Report Submitted 7/21/2013 Title: Experiment #8: Ionic Reactions Purpose: In this lab we will work with aqueous solutions of ionic substances and determine if they are soluble. If the solution appears milky than it is known as a precipitate reaction, meaning it is soluble, and that the ions separated and became surrounded by water. Precipitates in this experiment are electrically uncharged. To identify which compounds are...

Carbonate, Chemistry, Chlorine 620  Words | 3  Pages

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Experiment 1 Lab Report

Experiment 1 Cyanobacteria Oxygen Production Through Photosynthesis Date Performed: September 2, 2014 I. Introduction a. Background Cyanobacteria or blue green algae are renowned for their tolerability and susceptibility even in wide range of environmental conditions, a characteristic of many primitive organisms. CNB are believed to be the agents of autotrophic origin of life thus they probably represent the survivors of the earliest photosynthetic plants, along with photosynthetic and chemosynthetic...

Algae, Archaea, Bacteria 632  Words | 3  Pages

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Experiment on Cell Membrane

Farrah Belle Barredo Experiment 2 The Cell Membrane Abstract The boundary between any cell and its environment is the plasma membrane, composed of a matrix of phospholipid molecules along with a number of different kinds of proteins. Membranes have different properties and a variety of functions, in large part determined by the specific proteins within the membrane. This experiment is designed to determine the stress that various factors, such as osmotic balance, detergents and pH,...

Cell, Cell biology, Cell membrane 1547  Words | 5  Pages

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Physics Experiment: Analyzing Freezing Point Depression

to be 0.00805 mol. using what they found in the experiment they compared it with the 1.00 g of benzoic acid that was added to in experiment, they found that the molar mass of benzoic acid was 125.46 g/mol. Apparatus: Materials: Lauric Acid Benzoic Acid Culture Tube With Cap Safety Goggles Bunsen Burner Wire Gauze Iron Ring Spatula Blank Label Ring Stand 400-mL Beaker Thermometer Utility Clamp Paper Towels Theory: The lab focused on molality and its relation to the temperature...

Absolute zero, Boiling point, Celsius 869  Words | 4  Pages

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Chemistry Experiment

Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner, explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous...

Accuracy and precision, Combustion, Intensive and extensive properties 1147  Words | 4  Pages

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Observation and Experiment

Observation and Experiment Data Table A. The Overall Reaction What are the physical properties of the individual substances? Chemical Observation Calcium Chloride Grainy, White Sodium Bicarbonate White, flour texture Phenol Red Solution The color of Hawaiian punch, thin consistency, semi- transparent What happens when the substances are mixed together? Observations Calcium Chloride- Foams and heats up when mixed with the phenol red. Turned orange Sodium Bicarbonate- Turned orange...

Chemical reaction, Chemical substance, Chemistry 539  Words | 3  Pages

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Ap Bio Experiment Lab Report

The Effects of Environmental Stimuli on Animal Behavior AP Biology Emily Olsen April 26, 2012 I. Introduction: The purpose of this lab is to test the effect certain stimuli has on the behavior of a terrestrial isopod. These bugs are more commonly known as pill bugs and potato bugs. The objective of this experiment is to determine which kinds of habitats potato bugs favor. Potato bugs have an innate behavior called taxis which will cause the animal to move away from a stimulus that is unwanted...

Freshwater, Hypothesis, Julius Richard Petri 1318  Words | 5  Pages

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Chemistry Lab Experiment 6

Evelyn Ramos CHEM LAB 201-003 Professor Ruddock Experiment #4 - Chemical Reactions Performed: 3/6/13 DUE: 3/13/13 Pre Lab Questions: 1. Before you can write a chemical equation, what must you know? You have to know what the products and reactants are. 2. What observations might you make that suggest that a chemical reaction has occurred? If a gas is produced or precipitates are formed that indicates chemical reaction. Also, if color changes occur or...

Chemical reaction, Chemical substance, Chemistry 437  Words | 3  Pages

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An Experiment of Adaptation Lab Report

An Experiment of Adaptation Introduction: Throughout history of time, organisms change in relation to their environment, consequently, adaptation is an essential property of life. This experiment is designed to test the adaptation of Drosophila melanogaster. This kind of insect is also called fruit flies, it has been widely used in scientific research because it has a short life cycle about two weeks and it is easy to keep large numbers of them (Manning). Two groups of this species will be used...

Drosophila, Drosophila melanogaster, Experiment 1031  Words | 3  Pages

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Experiment 1: Colligative Properties of Solution

EXPERIMENT 1 COLLIGATIVE PROPERTIES OF SOLUTIONS Date: December 03, 2013 Locker 21 Members: Vanessa Olga Dagondon Christine Anne Jomocan Janica Mae Laviste Nablo Ken Menez A. TYPES OF DISPERSED SYSTEMS Results and Discussion The first part of the experiment aims to differentiate the different dispersion systems. In this experment, three systems are introduced: true solution, colloidal dispersion and coarse mixture. The said three systems are classified through a property of colloids known as the...

Boiling point, Chemical substance, Colloid 1956  Words | 4  Pages

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daphnia experiment

Introduction In this experiment I aim to find out if caffeine has an effect on the heart rate of daphnia. Daphnia are water fleas that have a sort of heart that we can see in magnification. We can count the number of heart beats in a minute of a regular daphnia and try and get a new one with the same specifications as the old one that may have died. It is also a good idea to get a new one as we want to see how much it affects it from ordinary instead of adding the caffeine one after another...

Beat Generation, Concentration, Heart rate 1466  Words | 5  Pages

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Lab Report Experiment 4

2g) 252% (.0126/0.05g) 196% (0.098g/0.05g) 43.9% (0.439g/1.0g) Melting Point 220°C 110°C (w/ out water) 105°C (w/ water) 70°C Discussion The percent recovery of Benzoic Acid is way above 100%. This indicates that an error was performed during the experiment. Phthalic Acid melted just 20°C less than the standard melting point for Phthalic Acid. Naphthalene melted 10°C less and Benzoic Acid also did not reach the standard melting point. Reasons for a low percent Recovery for Phthalic Acid and Naphthalene...

Benzene, Chemistry, Concentration 415  Words | 6  Pages

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Experiment 4 Lab Review

Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life.  These organic compounds are carbohydrates, lipids, proteins, and nucleic acids.  These are monomers and they link together into long chains that form polymers.  Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon, hydrogen, oxygen, nitrogen, and sometimes...

Carbohydrate, Disaccharide, Fructose 637  Words | 2  Pages

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Osmosis Experiment

Osmosis Experiment Dennis M. Feliciano Grand Canyon University BIO100L Biology Concepts Lab June 25, 2011 Osmosis Experiment Materials Grapes (unblemished) Raisins (larger is better) Water Salt Four small containers (i.e., drinking cups or clear glasses) A metric ruler Methods and Procedure Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers, add 1 tablespoon (14.8 ml) of table salt and mix well. Measure the length and width of a raisin and place...

Cell membrane, Chemistry, Concentration 1626  Words | 6  Pages

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lab report chemistry matriculation experiment 5

Lab report chemistry matriculation experiment 5 Example chemistry lab report matriculation experiment 4. Free ebook, pdf. Lab Session 5, Experiment 4 Chemical Nomenclature. Thursday, January 21, 2010 /. Introduction: The laboratory method used in the experiment is titration. Titration is a method usedin. Chemistry Lab Report on standardization of acid and bases. 34335 views. The flask is swirled to dissolve the KHP sample completely.5. The initial reading. (2011) Chemistry for Matriculation. Selangor...

Chemistry, Creative writing, Essay 970  Words | 3  Pages

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Osmosis and Diffusion Lab

Osmosis and Diffusion Title: Diffusion and Osmosis AP Lab 1 Purpose: The purpose of this activity is to determine the effects of a selectively permeable membrane on diffusion and osmosis between two solutions separated by a membrane. Hypothesis: Procedures: In lab manual Material: In lab manual Background Information: Data: Table 1 Diffusion of glucose and iodine. | Color | Glucose | Time | Dialysis Bag | Beaker | Dialysis Bag | Beaker | Start | | | | | 30 minutes...

Cell biology, Dialysis tubing, Diffusion 600  Words | 3  Pages

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Experiment 3: Properties of Organic Compounds

Jessica Robins Lab 3: Properties of Organic Compounds Introduction Distillation is a physical process used to separate chemicals from a mixture by how easy they vaporize. The temperature rises unit it reaches the temperature of the lowest boiling substance in the mixture while the other contents of the mixture remain in their original phase (until the most volatile substance has all boiled off) as it’s heated. Hot vapor results and passes into a condenser and is then converted to a liquid...

Boiling, Density, Distillation 648  Words | 3  Pages

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Lab Experiment: To Decarbonate Soft Drink

carbon dioxide gas thus the loss of mass from the control can be subtracted from the mass lost by the experimental can) equipment: - lemonade soft drink can - electronic balance - can of water risk assessment: there is minimal risk to this experiment as it has harmless equipment used method: 1)weigh closed can of soft drink and record results 2) open can of soft drink 3) weigh a can filled with 375ml of water 4) record mass of open soft drink and can of water daily over several days ...

Carbon, Carbon dioxide, Carbonated water 590  Words | 4  Pages

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Lab 6

which are responsible for osmoregulation are also involved in the excretion of metabolic waste products. In this practical you will conduct an experiment to determine the osmoregulatory ability of two organisms. You will also examine the organs responsible for osmoregulation and excretion of both invertebrates and vertebrates. 1. Osmoregulation Experiment Phascolosoma lurca (Phylum Sipuncula) and Uca coarctata, fiddler crab (Subphylum Crustacea) occur throughout the year in the mudflats of...

Annelid, Earthworm, Excretion 861  Words | 3  Pages

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Experiment 1

 Experiment 1 Synthesis of Acetaminophen Clifford Tse 20529845 Partner – Raminder Dhanoa TA – Xiao Qi CHEM 123L - 012 February 6, 2014 Introduction Acetaminophen, also commonly known as Tylenol, is an over-the-counter medicine used to relieve pain and reduce fevers. Within this experiment, Acetaminophen will be formed through the reaction between p-aminophenol and acetic anhydride. This reaction will incur Acetaminophen as a crude solid being impure, which will be purified further through...

Acetic acid, Acetic anhydride, Aspirin 1366  Words | 8  Pages

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Boiler Experiment

between the pressure and temperature of saturated steam in equilibrium with water. 2. To determine the vapour pressure curve. Introduction Properties of a fluid can change when heat and work are applied to it. There’s an interchange between the fluid and its surroundings when heat and work are applied according to the study of thermodynamics. Substances such as gases and vapors are often referred as P-V-T substances. Theory: An ideal gas obeys the equation of state that the pressure, specific...

Atmospheric pressure, Boiling point, Gas 1209  Words | 5  Pages

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Dsesign of experiment

Hmk – General Factorials. Use =0.05 unless otherwise specified 1. An experiment was run to examine the amount of time it takes to boil a given amount of water on the four different burners of her stove, and with 0, 2, 4, or 6 teaspoons of water. The numbers in parentheses are run order. The results of the design are given below.   Salt (teaspoons) Burner 0 2 4 6 Right Back 7(7) 4(13) 7(24) 5(15) 8(21) 7(25) 7(34) 7(33) 7(30) 7(26) 7(41) 7(37) Right Front 4(6) 4(36) ...

Chemistry, Factorial, Permutation 268  Words | 6  Pages

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Lab 15 Chemical Physical Properties

Lab 15: Chemical and Physical Properties Introduction Pre-lab Questions 1.  Determine if the following scenarios represent a chemical or physical property. a.  Dry ice (CO2) sublimes (changes from a solid to gas) at -78 ⁰C at standard atmospheric pressure. Physical b.  Iron metal rusts in moist conditions. Chemical c.  Hydrogen peroxide decomposes in the presences of light or heat. Chemical d.  Silver metal does not react with hydrochloric acid (HCl). Chemical e.  Copper is...

Freezing, Ice, Melting 651  Words | 6  Pages

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Experiment 4 Physical Chemical Properties

Purpose: To investigate the chemical properties of pure chemical substances. To investigate the physical properties of pure chemical substances. Procedure: In this experiment, I will examine several physical and chemical properties of a number of elements and compounds. Student Material: 1 Matches LabPaq Materials: 1 Beaker, 100 mL, glass, 1 Burner-fuel, 1 Goggles-Safety, 1 Rod, Stirring rod – Glass, 1Test Tube(5), 13 x 100 mm in Bubble Bag, 1 Test-tube-clamp-holder, 1 Test-tube-cleaning-brush...

Chemical reaction, Chemical substance, Chemistry 1114  Words | 4  Pages

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Lab Experiment: Determining Perimeter

Determining Perimeter, Area of a Standard Paper Sheet, Determining Minimum Reaction Time, Uncertainty and Their Propagations Abstract: We conducted two experiments aimed at learning data collection, presentation, interpretation, experimental uncertainties along with their propagation, writing of a scientific report, determination of perimeter, area of a standard printing paper sheet, and determining human reaction times – individual, group and class. Here are our results; perimeter, P=99.20+/-0...

Average, Classical mechanics, General relativity 868  Words | 3  Pages

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Experiment 1, Introduction to Laboratory Techniques

Abstract: This lab contains four different experiments. All four experiments focus on proper laboratory techniques. The reasoning behind this lab was to become familiar with lab equipment, the proper usage of lab equipment, and how to correctly take data and notes. The first experiment of this lab was to determine the volume of water in various types of equipment. The second experiment was to measure the different masses of pennies from pre and post 1982. The third experiment was to calibrate and...

Atmospheric pressure, Boiling point, Celsius 1510  Words | 6  Pages

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Animal Experiment

Animal Experiments Academic Paper Animals have been used in experiments and research for centuries. The earliest references to animal testing are found in the writings of the Greeks in the third and fourth centuries BC and using animal continuous increasingly to the present time. When the first rockets were launched there was a chimpanzee in this vehicle which went to death. In order to find new treatments, bacteria or viruses carrying disease were injected to laboratary animals. Many scientists...

Animal Liberation Front, Animal rights, Animal testing 2005  Words | 6  Pages

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