Sodium chloride Essays & Research Papers

Best Sodium chloride Essays

  • Sodium Chloride - 1718 Words
    Sodium chloride, also known as salt, common salt, table salt, or halite, is an ionic compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt, it is commonly used as a condiment and food preservative. [edit] Properties Thermal conductivity of pure NaCl as a function of temperature has a maximum of 2.03 W/(cm K) at 8 K and decreases to 0.069 at...
    1,718 Words | 6 Pages
  • Sodium Chloride and Solution - 2928 Words
    Write your name here Surname Other names Edexcel Certificate Edexcel International GCSE Centre Number Candidate Number Chemistry Unit: KCH0/4CH0 Science (Double Award) KSC0/4SC0 Paper: 1C Monday 21 May 2012 – Morning Time: 2 hours You must have: Calculator Paper Reference KCH0/1C 4CH0/1C KSC0/1C 4SC0/1C Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all...
    2,928 Words | 33 Pages
  • Sodium Chloride Experiment - 339 Words
    Making Sodium Chloride Equipment: Method: 1. Firstly, safety measures were taken by putting on laboratory coats, wearing safety goggles and tying long hair back. This was to protect clothing, eyes and to avoid burning as the experiment included dealing with open flames. 2. The equipment needed (as shown and labelled in picture A) was collected. 3. Using a measuring cylinder for each, to be exact with measurements, we measured out 10cm³ of HCl and...
    339 Words | 2 Pages
  • Sodium Chloride and Orange Oil
     Review of Related Literature Calamondin or Clamansi, Citrofornella microcarpa, belong to the fruit tree family Rutaceae. The fruit of the Calamansi is a small, round lime, a little bigger than the size of a thumbnail, about 30 mm (an inch) in diameter....
    972 Words | 2 Pages
  • All Sodium chloride Essays

  • Sodium Chloride and Solution - 1969 Words
    Instructions You must SHOW WORK AND PROBLEM SET-UP for CREDIT. You have to SUPPORT your answers by calculations and/or reasoning. If you do not understand something in the assignment or are not sure how to approach a question - EMAIL me before you submit. This assignment must be submitted no later than November 22nd, 2011. 1. What is a true solution? Explain why the solute does not settle out of a solution. Is it possible to have one solid dissolved in another? Explain. In metals it...
    1,969 Words | 8 Pages
  • Sodium Chloride and Ml Density
    Objective: The purpose of experiment of density determination is to determine the densities of regularly shaped object and irregular shaped solids as well liquids. Density equal mass over volume. Materials Used: Materials used in this experiment was a regular shaped object and irregular shaped object and a ruler to take the measurements of the object. A graduated cylinder and electric beam balance were used to measure the volumes and masses of the object. As well 5-20% concentrated...
    1,486 Words | 6 Pages
  • Preparing Sodium Chloride - 277 Words
    Title: Preparing Sodium Chloride Abstract: In this practical I am going to prepare sodium chloride using sodium hydroxide + sodium chloride. Introduction: NaOH + HCL NaCl + H2O I am going to titrate 0.1 mol dm-3 sodium hydroxide with 0.1 mol dm-3, to find the exact proportions via titration. Aim:- To prepare sodium chloride using titration. Apparatus:- NaOH HCl Phenolphthalein Pipette Burette Conical flask Funnel Method: 1) Pour 0.1 mol dm-3 sodium...
    277 Words | 2 Pages
  • Sodium Chloride and Water -different Concentrations
    Material and Methods * Osmosis : -thistle funnel tube -dialysis tubing sack -saturated NaCl w/food coloring -beaker with distilled H2O The experiments begins with the construction of a simple osmometer by obtaining pre-soaked length of tubing ,opened and tied at the end. The tube is filled with saturated NaCl solution (with added food coloring) and the thistle is inserted in the dialysis tubing. The dialysis tubing is sealed to the thistle funnel with dental floss and placed in a...
    623 Words | 3 Pages
  • Electrolytes: Ionic Bond and Sodium Chloride
    Week #2 Post Lab 1.) Define the following: electrolyte, nonelectrolyte Electrolyte: A substance that dissolves in water to form solutions that conduct electricity. Nonelectrolyte: A compound that doesn’t dissociate into ions when dissolved in water. 2.) Using examples in the last link, draw beakers showing atomic scale representations of aqueous solutions of the following compounds. Classify each as an electrolyte or nonelectrolyte. * Ba(OH)2 (aq) * NH3 (aq) * C3H7OH (aq)...
    728 Words | 3 Pages
  • Osmosis: Sodium Chloride and Onion Cells
    Osmosis/Plasmolysis Lab Name: Problem: How do solutions of various salt concentrations influence osmosis in relation to an onion cell? Materials: (per student group): red onion epidermis forceps, dropper distilled water NaCl solution paper towels microscope slide cover slip Procedure 1. Make a wet mount of the red onion epidermis. 2. Examine under low power. When you have a clear view of several cells, switch to high power. Make a labeled...
    442 Words | 3 Pages
  • The Effects Sodium Chloride Has on Pond Water
    The Effects Sodium Chloride has on pond water Introduction Ponds are depressions in the ground that fill with water from either run offs or melting snow or rain fall from many different weather changes. There are two types of ponds permanent and temporary. Ponds tend to be much smaller in size and are usually only six to ten feet in depth. This differs from a lake because the size of a lake is much larger and is much deeper. The temperature of a pond is usually the same from top to bottom...
    1,380 Words | 4 Pages
  • The Effect Of Sodium Chloride Concentrations On Lettuce Seed Germination
    Introduction Germination is the very beginning of the plant’s life; where it transitions from being an embryo in a seed to breaking out and becoming a little stem. There are many factors that affect the germination of seeds which include the PH level of the soil, the amount of water in its environment, the amount of ATP the seed can generate in order to grow, the temperature of the environment and the amount of sunlight the seed receives (Ghaderi-Far et al., 2010). The purpose of this study was...
    984 Words | 6 Pages
  • How the Concentration of Sodium Chloride Solution Affects the Rate of Osmosis
    Aim: to investigate how the concentration of the sodium chloride solution affects the rate of osmosis. Hypothesis: The higher the concentration of sodium chloride in the solution, the less the potato will weigh at the end of the experiment. Variables: Independent – the concentration of the sodium chloride solution Dependent – weight of the potatoes at the end Control – weight of potatoes at the start of the experiment, volume of the solution Equipment: Potato Knife Scales Sodium solution 3M...
    523 Words | 2 Pages
  • Osmosis and Diffusion on Different Concentrations of Sodium Chloride on a de-Shelled Chicken
    1. Provide the aim and background information 2.1. Diffusion is the spontaneous kinetic movement by which molecules move from an area of a high concentration to an area of low concentration. Diffusion continues until it reaches equilibrium. Osmosis is similar to Diffusion but it’s the process in which water moves across a semi-permeable membrane and goes to the higher concentration of solute.1 2.2. Important factors to Osmosis and Diffusion include Temperature, Concentration...
    1,540 Words | 5 Pages
  • The Effect of Sodium Chloride (Nacl) Solution on the Growth Curve of Mungbean
    The Effect of sodium chloride (NaCl) solution on the Growth Curve of Mungbean (Vigna radiata)1 March 10, 2012 ___________________ 1A scientific paper submitted in partial fulfillment of...
    1,681 Words | 7 Pages
  • How Does Sodium Chloride Effect the Growth of Phaseolus Vulgaris?
    How does sodium chloride effect the growth of Phaseolus vulgaris? [Type the document subtitle] TABLE OF CONTENTS page number 1 DESIGN 1 1.1 Defining the problem 2 * Focus / research question * Hypothesis * Background information / theory * Investigation Variables 1.2 Controlling Variables 3 * Treatment of Controlled Variables * Control Experiment 1.3 Experimental Method 4 * Materials...
    2,032 Words | 11 Pages
  • Investigating the Relationship Between Concentration of Sodium Chloride and the Rate of Reaction of Enzyme Amylase
    Seung Soo (Jason) Lee 002213-065 Internal Assessment – Investigating the Relationship between Concentration of Sodium Chloride and the Rate of Reaction of Enzyme Amylase Research Question: How will changing the percentage of sodium chloride concentration affect the rate of reaction of enzyme amylase, measured using the absorbance of starch and iodine with a spectrophotometer. Introduction: Amylase is an enzyme that is involved in the human digestive process. Found in both the human...
    4,950 Words | 19 Pages
  • Sodium and Ml - 829 Words
    1a. Urea [(NH2)2CO] is produced by reacting ammonia with carbon dioxide with the release of water. In one process 637.2g of ammonia is treated with 1142g of carbon dioxide A. Write a balance equation for the above reaction B. Which of the 2 reactants is the limiting reagent C. Calculate the mass of urea formed D. How much excess reagent is left at the end of the reaction E. If the actual yield of urea formed was 980g what is its yield % a. Ans. 2NH3 + CO2  (NH2)2CO + H2O (17)...
    829 Words | 4 Pages
  • Sodium Intake - 958 Words
    Sodium is a mineral that is present only in small quantities in most natural foods, but salt is added, often in large amounts, in food processing and by cooks to enhance flavor. Sodium is the predominant ion in extra cellular fluid. Sodium (Na) is the predominant cation in extra cellular fluid and its concentration is under tight homeostatic control. Excess dietary sodium is excreted in the urine. The kidney very efficiently reabsorbs the mineral when intakes are low or losses are excessive....
    958 Words | 3 Pages
  • Determination of Chlorides - 1053 Words
    ISE: The Determination of Chloride Unknown: #34 I. Purpose: In experiment V, “ISE: The Determination of Chloride”, the concentration of an Unknown Chloride solution, and the Wt% of NaCl in a sample of celery salt, were both determined. To determine the concentration of an Unknown Chloride solution, a Calibration plot is first prepared. The Calibration plot is made by first measuring a series of known concentrations of Cl- (with the same activity of the unknown solution) and obtaining...
    1,053 Words | 5 Pages
  • Synthesis of T-Pentyl Chloride
    Exp 23 B Synthesis of t-Pentyl Chloride 11-8-12 Purpose: The sysnthesis of t-Pentyl Chloride from alcohol. Procedure: Preparation of t-Pentyl Chloride. In a 125-mL separatory funnel, place 10.0 mL of t-pentyl alcohol (2-methyl-2-butanol, MW _ 88.2, d _ 0.805 g/mL) and 25 mL of concentrated hydrochloric acid (d _ 1.18 g/mL). Do not stopper the funnel. Gently swirl the mixture in the separatory funnel for about 1 minute. After this period of swirling, stopper the separatory funnel...
    952 Words | 3 Pages
  • Impure Sodium Carbonate - 1585 Words
    Lab 4. Volumetric Determination of Impure Sodium Carbonate (Na2CO3) Introduction: To determine the total amount of carbonate in unrefined sodium carbonate, soda ash, a titration is done using a standardized solution of HCl. Aqueous HCl is a strong acid and therefore almost completely disassociates into H+ and CL-. Therefore, when HCl is used in a titration, the H+ is the titrant. Carbonate in aqueous solution is able to accept a proton, i.e. it acts as a base. When carbonate accepts the H+ a...
    1,585 Words | 6 Pages
  • Preparation of T-Butyl-Chloride
    Preparation of t-Butyl-Chloride March 8 & 15, 2012 Theory: Alkyl halides can be synthesized when alcohols react with hydrogen halides. An alkyl halide is a halogen-substituted alkane, and a hydrogen halide is a compound consisting of a hydrogen bonded to a halogen (H-X). Alkyl halides are classified as primary, secondary, or tertiary depending on the number of alkyl substituents directly attached to the carbon bearing the halogen atom. The purpose of this laboratory experiment was to...
    2,032 Words | 6 Pages
  • Gravimeter Analysis Of A Chloride Salt
    Gravimeter Analysis of a Chloride Salt Author Name: Abdulla Almahmood Partner: Mohamed Almahmood Date: November 11, 2014 Group: A4 PURPOSE To find the amount of chloride in an unknown salt using typical techniques of gravimetric analysis. THEORY Adding Silver Ion In Order To Precipitate Chloride Ion Due to the extreme insolubility of it’s automatically assumed that the reaction shown above will be completed. However, some of will actually dissolve as following: Furthermore, the...
    1,216 Words | 6 Pages
  • Deicer Magnesium Chloride - 2881 Words
    Deicer Analysis of MgCl2 Dalena Khothsombath *† Group Members: James Deringer, Jeff Tanaka, and Yang Zhao Group 3 “I pledge that this report, the data in it, and interpretations are my work, except where referenced. I have neither obtained nor given aid on this assignment outside of data discussions with my lab team. “ Signed_________________________________________ Abstract A common road salt, magnesium chloride, was analyzed in the lab to test its effectiveness as a road...
    2,881 Words | 9 Pages
  • Sodium and Conical Flask - 386 Words
    Equipment used • Conical flask • Filter • Funnel • Beaker • Stirring rod • Evaporating basin • Bunsen burner • Watch glass Method For this coursework I had to find out the Cations and Anions for a given substance. This is the method I used. Firstly I measured out 5 grams of Mummion and added it to a 100 cm3 of distilled water I stirred this for a little while until I was left with a red solution. Next I filtered this solution through filter paper into a conical flask. I now had...
    386 Words | 2 Pages
  • Saponification: Sodium Hydroxide and Soap
    1. Functions of Soap Soap primarily serves as a dirt remover and a cleanser. It is used in bathing, cleaning, and also as a lubricant. Oil, grease, and other forms of dirt do not dissolve in water. Conversely, soap can suspend these in such a way that it can be discarded through its ability to act as an emulsifying agent. This emulsifying agent enables the dispersion of liquid into another immiscible liquid. In this manner, oil does not mix with water whereby able to induce dirt. 2. Raw...
    590 Words | 3 Pages
  • Chemical Reactions- Sodium Hydroxide
    Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change, effervescence (bubbles), when light or heat given off, and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning), synthesis, decomposition, neutralization, single replacement and double replacement. A combustion reaction is a reaction with oxygen,...
    1,545 Words | 8 Pages
  • T Pentyl Chloride Lab Report
    Synthesis of t-Pentyl Chloride Introduction: Using SN1 reaction mechanism with hydrochloric acid, t-Pentyl alcohol was converted to t-Pentyl chloride in an acid catalyzed reaction. The reaction took place in a separatory funnel designed to separate immiscible liquids. The crude product was extracted by transferring a solute from one solvent to another. The process of washing the solutions by phase transfer was used in order to remove impurities from the main solvent layer. Finally, the...
    1,041 Words | 4 Pages
  • Vinegar: Sodium Hydroxide and Measuring Cylinder
    Who's been cheating on the vinegar? Aim: To investigate if the vinegars have been diluted by working out their concentrations. Scientific Background: Vinegar is an acid and there fore can be neutralised by an alkali. Acid + Alkali à salt + water Hydrochloric acid + Sodium Hydroxide à Sodium chloride + water Vinegar is a weak acid and therefore it only partially ionises in solution. CH3COOH ßà CH3COO- + H+ An alkali such as Sodium Hydroxide has a formula NaOH. If the...
    659 Words | 3 Pages
  • Organic: Sodium Hydroxide and Erlenmeyer Flask
    ABSTRACT OBJECTIVE To learn the concept of separating organic compounds by utilizing the concept of acid/base chemistry in so that separation can be done. INTRODUCTION Using acid base chemistry in the separation of substances can be a quite useful technique in organic chemistry. A basic extraction can be carried out by applying a hot solvent such as water to a dry substance like coffee. This will allow for the extraction of caffeine and flavor from the coffee beans. Acid base chemistry can be...
    783 Words | 3 Pages
  • Investigating Stoichiometry with Sodium Salts of Carbonic Acid
    Experiment 7 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction: The student will perform the experiment in order to find the percent yield by using the theoretical value found using the balanced equation for sodium carbonate as well as sodium bicarbonate. The objective is to stabilize the substances by titrations and finding the percent yield when all the data is collected. The purpose of this procedure is so that the student will get better understanding of...
    1,238 Words | 4 Pages
  • LAB Report Experiment 7 Investigating Stoichiometry with Sodium Salts of Carbonic Acid
    Gracen Seiler April 7th, 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount...
    868 Words | 5 Pages
  • Chemistry Rates of Reaction Coursework: Sodium Thiosulphate and Hydrochloric Acid
    An investigation to show how the rate of reaction between hydrochloric acid and sodium thiosulphate is affected by the concentration of the acid Simple Procedure Place a conical flask on a piece of paper with a cross on it. Add hydrochloric acid and sodium thiosulphate, and record the amount of time taken for the cross to disappear through the solution from the top of the flask. Record this time and repeat this for different concentrations of hydrochloric acid. Fair Test The variables in...
    1,036 Words | 5 Pages
  • Lab Report 7 Investigating stoichiometry with Sodium Salts of Carbonic Acid
    Experiment 7 INVESTIGATING STOICHIOMETRY WITH SODIUM SALTS OF CARBONIC ACID Introduction In this experiment we are going to get a better understanding of chemical stoichiometry. We are going to be reacting sodium bicarbonate (NaHCO3) and sodium carbonate (Na2CO3) with hydrochloric acid (HCl). To start off the mass of two unknown substances (being the sodium bicarbonate and sodium carbonate) will be taken. We will need to construct balanced equations for both of the reactants with the HCl...
    792 Words | 3 Pages
  • Investigating Solubility How does the solubility of Potassium Chloride and Potassium Iodide in water, vary with temperature?
    HOW DOES THE SOLUBILITY OF POTASSIUM CHLORIDE (KCL) AND POTASSIUM IODIDE (KI) IN WATER VARY WITH TEMPERATURE? AIM To observe solubilities of KCl and KI with water at different temperatures To compare the two solubility curves and discuss what might vary the solubility of different ionic compounds. THE VARIABLES DEPENDENT VARIABLE Temperature INDEPENDENT VARIABLE Amount of solute (KCl, KI) CONSTANTS Amount of the solvent (water), pressure APPARATUS 100G OF POTASSIUM CHLORIDE...
    1,471 Words | 19 Pages
  • Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
    Disappearing X Experiment Introduction I am going to investigate the rate of reaction between sodium thiosulphate (thio) and hydrochloric acid. Hydrochloric Acid + Sodium Thiosulphate "" sodium chloride + water + sulphur The reactants are both colourless, but one of the products, sulphur, is yellow, so we can use this fact to follow the rates of reaction. I am going to investigate how the concentration of the acid effects the speed of the reaction. Apparatus 1 small measuring cylinder 1...
    654 Words | 5 Pages
  • Lab 8 Ionic Reactions
    Ocean County College Department of Chemistry Ionic Reactions Submitted by: Date Submitted: July 10, 2014 Date Performed: July 8 2014 Lab Section: Chem 181-DL2 Course Instructor: Amal Bassa Background Aqueous solutions of ionic substances will be experimented with in this Ionic Reactions lab. Aqueous solutions are solutions that water is solvent. After ionic substances dissolve in water, ions separate and become surrounded by water molecules. When these ion...
    1,245 Words | 8 Pages
  • Two Types of Solids - 1574 Words
    March 2, 2011 Lab Report Physical Properties of Two Types of Solids SCH3U0 Maggie Liu Abstract The purpose of this lab is to study some of the physical properties of two types of solids – ionic and molecular. The samples used are sodium chloride (ionic) and camphor (molecular). The physical properties studied are odour, hardness, melting point, solubility in water and solubility in 2-propanol. It is observed that some of the physical properties of sodium chloride are no...
    1,574 Words | 5 Pages
  • Osmosis in Quails' Egg - 2110 Words
    Title: Osmosis in quails’ egg Aim: To observe the effect of different concentrations of sodium chloride on a de-shelled quail’s egg To explain the effects in terms of osmosis Research Questions: Does the different concentrations of sodium chloride on a de-shelled quail’s egg effect the final mass of quail’s eggs that is measured by using electronic weighing balance? Introduction: “If a cell is to perform its functions, it must maintain a steady state in the midst of an...
    2,110 Words | 8 Pages
  • Deicer Lab - 1870 Words
    Abstract Through three different experiments we were to find the quality of NaCl as a deicer. These experiments included testing the freezing point depression of NaCl in solution at two different concentrations, testing for the H of an aqueous NaCl solution, and combining NaCl with MgCl2 in an aqueous solution to test for freezing point depression. Through these various experiments we found NaCl to be the best deicer for our region due to its proficient freezing point depression and its...
    1,870 Words | 6 Pages
  • Salinity Experiment - 345 Words
    Salinity Experiment Aim To determine a method of measuring a soil sample's salinity level in order to measure 3 samples' salinity level. Hypothesis I think that by running a current through a salt solution and measuring the resultant amperage, a pattern in the recordings will help find a soil sample's salinity level. Variables Controlled – Amount of solution (100 mL), supplied voltage (4V), amount of soil (50 gm) & water (150 mL) in soil sample's solution. Independent – Amps...
    345 Words | 2 Pages
  • Le Chatlier's Principle - 2527 Words
    Le Chatelier’s Principle Samuel Song- Parter: Tom Sizeland Dr. Hauptfleisch: CHE-102L-01 Performed: 3/25/13 Due: 4/12/13 Introduction: Le Chatelier’s Principle states that “if a chemical system at equilibrium experiences a change in concentration, temperature, volume, or partial pressure, then the equilibrium shifts to counteract the imposed change and a new equilibrium is established (Atkins,1993).” In equilibrium the chemical reactions are a two way reactions and if there are changes...
    2,527 Words | 7 Pages
  • Stoichometry Lab - 893 Words
    Jeff Chemistry-Mr.Meuret Stoichometry Lab Purpose: The purpose of this lab is to perform a chemical reaction and to have a percent yield of above 95%. That is to ensure a job at a major multi-national cosmetics corporation. Equipment: Materials: 1. 2 Beakers 1. Na2CO3 2. Stirring Rod 2. Deionized water 3. Ring stand 3. CaCl2 4. Iron ring 5. Pipestem triangle 6. Funnel 7.Filter 8. Flask Procedures: Day 1 1. Put your...
    893 Words | 4 Pages
  • Muscle Nerve - 627 Words
    Muscle and Nerve Preparation Preparation of Ringer's solution Dissolve 6.5 g of sodium chloride (NaCl), 0.14 g of potassium chloride (KCl), and 0.20 g of sodium bicarbonate (NaHCO3) in 800 mL of distilled water. Also, dissolve 0.16 g of hydrated calcium chloride (CaCl2.2H2O) and 0.39 g of hydrated magnesium sulfate (MgSO4.7H2O) in 100 mL of distilled water. Add the 100 mL cautiously to the 800 mL, stirring vigorously. Then make the final volume equal to 1 liter by adding more distilled...
    627 Words | 2 Pages
  • Best Deicing Substance Memorandum
    MEMORANDUM From: To: Subject: Calcium Chloride Best Purchase for Deicing Enclosures: (1) Data Record (2) Data Treatment (3) Environment Impact Research After hours of vigorous examination, we have come to the conclusion that calcium chloride (CaCl2) would be the best deicer to use on a naval base over sodium chloride (NaCl) and ethylene glycol (C2H6O2). In order to melt ice, deicers lower the freezing point so that the ice melts at lower temperatures. CaCl2...
    790 Words | 3 Pages
  • Separating a Mixture of Compounds Exp. No. 2
    Separating a Mixture of Compounds Exp. No. 2 name Chemistry 145 February 2, 2014 I. Purpose The purpose of this experiment was to separate this mixture into components, determine the mass and percentage of each component. In addition to test the accuracy of an alternative method of subtraction to find the mass of the sodium chloride directly. Start with a mixture of sand (SiO2), sodium chloride (NaCl), and ammonium chloride (NH4Cl), and use these separation processes: sublimation...
    887 Words | 4 Pages
  • Microbiology - 656 Words
    Osmosis 4/13/13 MLT1 Lab 9 Performed at Home Microbial Growth There are three types of environments in which cells are located which include isotonic, hypotonic and hypertonic. In an isotonic environment, the amount of water and solute are the same both inside and outside of the cell. As water drifts into the a cell, the same amount flows out creating a balanced environment both inside and outside of the cell. When there is a high level of...
    656 Words | 3 Pages
  • Compare City Planner and Planner
    w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om *2925136620* CHEMISTRY Paper 3 (Extended) 0620/33 May/June 2012 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams,...
    2,072 Words | 20 Pages
  • Nacl Affects on Enzymatic Reaction
    The Effects that 1%, 4%, and 16% Sodium Chloride (NaCl) Concentration Had on the Rate of Reaction of Catecholase Enzymes in a Potato (Solanum tuberosum). Abstract Enzymes are a key component of a cell. They make chemical reactions happen faster because they lower the activation energy to make the chemical reaction occur. Most of the time, it is best if enzymes produce as efficiently as possible, but in some cases it is better if they do not, when dealing with potatoes (Solanum tuberosum)....
    1,453 Words | 4 Pages
  • Lab butter - 665 Words
    Introduction Butter is a dairy product made by churning of cream, mostly from fresh cow’s milk, with the additional of salt (Bylund, 1995). Salt (Sodium Chloride) is used as flavoring and preservative as it inhibit the microbial growth. Salt content in butter is limited by legislation in some countries. For example, in Thailand, the maximum sodium chloride content in butter shall not exceed 4 percent of total butter weight (Thai Ministry of Public Health, 2001). Therefore, analytical methods...
    665 Words | 3 Pages
  • Experiment 21: Reaction of Some Akyl Halides
    Experiment 21: Reaction of some Akyl Halides Completed on November 13, 2012 Purpose The purpose of this experiment was to examine reactiveness of 10 organic compounds under both SN1 and SN2 conditions. Table of Chemicals Compound Structure Molecular Weight (g/ml) Boiling Point (°C) Melting Point (°C) Density (g/ml) Safety 1-bromobutane 137.03 102 -112 1.269 Flammable, irritant 2-chloro-2-methylpropane 92.57 51 -26 0.89 Flammable, irritant acetone 58.08 56.5 -95 0.793...
    667 Words | 4 Pages
  • Concepts of Chemistry - 1274 Words
     Chemistry 101 Chapter 4 Practice Test February 2013 1. A 20.0-g sample of HF is dissolved in water to give 2.0  102 mL of solution. The concentration of the solution is: a) 1.0 M b) 3.0 M c) 0.10 M d) 5.0 M e) 10.0 M Ans: d) 5.0 M Page: 4.3 2. Which of the following aqueous solutions contains the greatest number of ions? a) 400.0 mL of 0.10 M NaCl b) 300.0 mL of 0.10 M CaCl2 c) 200.0 mL of 0.10 M FeCl3 d) 200.0 mL of 0.10 M KBr e) 800.0 mL of 0.10 M sucrose...
    1,274 Words | 7 Pages
  • Gsce - 1146 Words
    The effect of Sodium Chloride (NaCl) salt concentration on osmosis in potato cells The movement of substances in plant cells involves many processes and systems, all of which may affect the plant bio-chemically and physically, and one of these processes is osmosis. Osmosis is the flow of water through a semi-permeable membrane of a cell moving from an area of higher water potential to an area of lower water potential until reaching equilibrium known as isotonic. Before reaching the point of...
    1,146 Words | 3 Pages
  • Reaction Lab - 1032 Words
    Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations Introduction: Metathesis or double decomposition reactions are a reaction in which two compounds react to form two new compounds, with no changes in oxidation number. The ions of two compounds exchange partners. AX + BY  AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water, driving the reaction forward. A typical example is as followed and is considered a molecular...
    1,032 Words | 5 Pages
  • Properties of Hydrates - 1038 Words
    Lab #6 Properties of Hydrates Purpose: The purpose of the “Properties of Hydrates” lab is to study hydrates, and be able to identify them. This lab also focuses on observing the reversibility of hydration reactions by hydrolysis, and also testing substances for efflorescence of deliquescence. Procedure: A. Identification 1. Place 0.5 grams of each compound (Nickel Chloride, Potassium Chloride, Sodium Tetraborate, Sucrose, Calcium Carbonate, and Barium Chloride) in a small dry...
    1,038 Words | 4 Pages
  • Flame Test - 895 Words
    Title: Flame Test Aim: To determine the cation in each of the unknown substance X, Y and Z by observing the flame colour of different metal compounds. Introduction: A distinctive feature of many s-block metals is their ability to produce flame colours. At temperature of a Bunsen flame, a compound will decompose to give gaseous atoms of its constituent elements. When an electron in the gaseous atom absorbs energy from the flame, it will move from an orbital with lower energy to...
    895 Words | 4 Pages
  • Halide Ions - 622 Words
    Reactivity of Halide Ions Michelle Faktor and Kelly Freas Date of Experiment: October 28, 2012 Period 2 Honors Chem Purpose: The purpose of this lab is to observe the reactions of halide ions with different reagents by mixing them together. Analyze data to determine characteristic reactions of each halide ion. Infer the identity of unknown solutions. Materials: * 0.1 M AgNo3 * 0.1 M NaCl * 0.1 M NaF * 0.2 M KBr * 0.2M Kl * 0.2 M Na2S2)3 * 0.5 M Ca(NO3)2...
    622 Words | 3 Pages
  • Osmosis and diffusion lab report
    Introduction: The purpose of experiment 1 was to demonstrate the principle of simple diffusion and understand how to make % solutions. Exercise 2 demonstrated the principle of osmosis: observing the movement of water by osmosis from an area of lower concentration of a solute to an area of higher concentration of a solute. Materials and Method: Refer to pages 47-51 of Bio 203L Lab Manual. Results/ Discussion: The effect of the chloride ion on its rate of diffusion in agar means it will...
    267 Words | 1 Page
  • Analysis of Silver in an Alloy - 1632 Words
    Analysis of Silver in an Alloy Introduction In this experiment an alloy of silver will be analyzed to determine its silver content. The silver-copper alloy will be dissolved in nitric acid, the silver will be precipitated as silver chloride, and the silver chloride will be filtered, washed, dried and its mass determined. From the mass of the silver chloride formed and the mass of the original sample, you will be able to calculate the percent of silver in the alloy. Because the results are...
    1,632 Words | 6 Pages
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