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Graduated cylinder

inorganic chemistry lab report Density determination

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1 Experiment 2: Determination of Density of a liquid and a solid Objective: The objective of this experiment is to determine the density of the unknown liquid and an unknown solid by measuring the mass and volume of them. Also, we measuring those data by displace water and using Excel to calculate. Method: For the first part of this experiment, we measure the mass and volume of unknown liquid five times using a 25-ml graduated cylinder. Then calculate the density. In order to get the density of the liquid, we use Excel to graph the data we get. The volume of the liquid is on the x-axis, the mass of the liquid is on the y-axis, and the slope the trend line will be the density we want.

Chemistry

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Grace Doran 10/28/15 Grade 9 Liver Catalase Lab Purpose: The experiment was conducted in order to test whether or not the liver catalase performed different when denatured. Also to test what happens when we change the pH of the reaction. Introduction/ Background Information: A liver is vital in getting rid of toxic substances in the body. It uses enzymes which are proteins that help to complete chemical reactions. The enzyme used in the liver is a catalase enzyme. This enzyme helps to break down hydrogen peroxide (H2O2) into water and oxygen. However enzymes may under extreme heat or pH levels may become denatured and nonfunctional.

1.07 Assignment Chemistry I Honors

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01.07 Accuracy and Precision: Balance Lab Worksheet Before You Begin:?You may either copy and paste this document into a word processing program of your choice or print this page. Procedure Access the?virtual lab?and complete the experiments.? Data Below is the table that you will complete for the virtual lab. Either type your results into this table or print the table from the virtual lab (it must be submitted to receive full credit for this assignment.) To print from the virtual lab. Be sure the data table is viewable. Right-click (PC) or Command-Click (Mac) on the table and select print. PART I- Density of Unknown Liquid TRIAL 1 TRIAL 2 TRIAL 3 Mass of Empty 10 mL graduated cylinder (grams) 26.0 25.5 25.4 Volume of liquid (milliliters) 8.7 8.6 8.6
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