I. Purpose – The purpose of this lab was to observe different type of chemical reactions to write and balance chemical equations.
II. Hypothesis: If you mix two chemicals together, then they will change color and/or bubble/fix.
The identification of acids and bases using a natural indicator
Purpose: The purpose of this lab practice is to identify the pH of certain solutions and if they are acids or bases.
Introduction: In chemistry, pH is a measure of the activity of the (solvated) hydrogen ion. p[H], which measures the
Title: Observation of Macroscopic Chemical Changes, Alice Kimbrell, Chemistry 101-DS01:74589, 5/31/2013.
Purpose: In this lab, I will observe macroscopic changes that occur when mixing together certain chemicals and household cleaners. The mixing of the chemicals provided with each other and w
The primary function of the digestive system is to transfer nutrients, water, and electrolytes from the food consume into the body’s internal environment. The ingested food is essential as an energy source, or fuel, from which the cells can generate ATP to carry out their parti
The discussion section of the lab report is where the results are interpreted, especially as they relate to the goals stated in the Introduction. It is also a place where experimental anomalies, errors, or other surprising results can be discussed.
For Chemistry 1210 lab, the expected leng
Standardization of Solution and Titration Lab Report, Preparing a Dilute HCl Solution from a Concentrated One Titrating NAOH Solution with HCl Solution (of Known Concentration)
Chemistry lab report(by abdazino abdalla)
preparing a dilute HCl solution from a concen
06.03 Calorimetry: Lab Report
Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page.
The Dissolving of Solid Sodium Hydroxide in Water
1. Measure out approximately 200 mL of distilled water and pour
BIOLOGY LAB REPORT
Name: Noor Farzanah Binti Ameer Sajahan
Title of Report: The vitamin C content of fruit juice
Date of experiment: 29 July 2013
Lecturer: Puan Zakiah binti Zakaria
Title : The vitamin C content of fruit juices.
To calculate the enthalpy change of neutralization of the given pairs of acid and base.
When alkali neutralizes an acid, a salt and water are formed. Aqueous hydrogen ions, H+(aq) from the acid react with the hydroxide ions, OH-(aq) from the alkali, forming water.
DETERMINATION OF ENTHALPY CHANGE OF NEUTRALIZATION
IA Criteria Assessed: DCP CE MS
When an alkali neutralizes an acid, a salt and water are formed. Aqueous hydrogen ions (H+(aq)) from the acid react with the hydroxide ions (OH- (aq)) from alkali, forming w
Heats of Reactions – Hess’s Law
To measure experimentally the amount of heats absorbed or released during the dissolving of sodium hydroxide in water and during the reactions of solid sodium hydroxide and its solution with HCl solution.
Julia (hour 2)
TITLE: INVESTIGATION – Hand Warmer Design Challenge: Where does the heat come from?
PURPOSE: to determine which of the 3 ionic compounds (NaCl, LiCl, or NaCH3COO) is most
suitable for use as a hand warmer
DAY 1 (Part 2 only):
Experimental Synthesis of Aspirin and Melting Point Purity Analysis
CH 222, Section 24221
Department of Chemistry
Portland Community College
The various methods available to synthesize aspirin lead to the need to examine and evaluate...
Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations
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...
CROATICA CHEMICA ACTA
CCACAA 78 (1) 99¿103 (2005)
Original Scientific Paper
Acid Value Determination in Vegetable Oils by Indirect Titration
in Aqueous-alcohol Media
Elena Kardash* and Yakov I. Tur’yan
National Physical Laboratory of Israel (INPL), Givat...
Experiment 1 Separation of Mixtures
Summary of Principles:
Most of the materials we encounter in everyday life are not pure substances. Many materials such as sand are formed from physical combination of various substances, and are called mixtures. Mixtures can be classified into...
Process Determine the Heat of Reaction
Perform by: Ashley Kue, Allison Loken, Bradley Mies and Nam Nguyen*
In this experiment, the objectives were to investigate the heat energy change in the acid-base reaction and related to Hrxn. Also needed to construct two...
An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid
A chemical reaction is the process by which atoms or groups of atoms are redistributed, resulting in a change in the molecular composition of substances. The reaction rate is how q
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 mai
Method 1- Titration
• For the titration, it is necessary to dilute the Sodium Hydroxide so that it is an easier concentration to titrate. Using a 25cm3 pipette, washed out with some of the NaOH solution, transfer 25cm3 of the solution to a 250 cm3 volumetric flask, and fill to the line with disti