The unknown soda ash from experiment 3 was used‚ to determine the weight for each trial we used the equation of (M of HCl) x (18 ml x 105.99) / (10 x 2 x Na2CO3 ). Which was equal to (0.01472 M) x ((18 mL X 105.99)(10 x 2 X 2.428 % )= 0.6 g. To start we had to rinse the beakers‚ electrode and the stirring bar with diluted water. The sample we needed was weighted to the closest 0.1 mg which we got was 0.3 for the first trial. The sample was transferred to a 250 mL beaker and dissolved in 70 mL of
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Determination of the Concentration of Acetic Acid in Vinegar Lab Exercise 4 CHEM 1106 9/19/12 Purpose: Standardize a sodium hydroxide solution using a primary standard acid. Determine the molarity and the percent by mass of acetic acid in vinegar by titration with the standardized sodium hydroxide solution. Introduction: Vinegar is a dilute solution containing acetic acid. Since vinegar has a low pH‚ it can be titrated with a base. Titration is a method used in order to ascertain
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Pollution problems that are serious but that are relatively unknown Many kinds of pollution exist worldwide. Many familiar pollution problems are known to many people such as pollution from the garbage‚ air pollution from cars and industry‚ pollution released into water from the factories and so on. There are many occurring spots worldwide that serious pollution problems have taken place‚ but do you wonder where those places are? Some of the significant scenes are worth knowing. Here are some scenes
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The Population Solution Question... 1. Most people assume that human numbers will stabilize at some point in the future. Discuss the conditions which can contribute to the solution of the population explosion. "Let us suppose that the average human being weighs 60 kilogram ’s. If that ’s the case then 100‚000‚000‚000‚000‚000‚000 people would weigh as much as the whole Earth does. That number of people is 30‚000‚000‚000‚000 times as many people as there are living today. It may seem to
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involves measuring the absorbance of several concentrations of the pure substance or the "standard" substance determine relationship between concentration and absorbance compared results from unknowns How to use Linear Regression for Generating a Standard Curve? © 2010 by M. Olaveson UTSC 2 BIO A01F-Fall 2010 - ASSIGNMENT # 2 - Preparing a Standard Curve using Excel 2007 Assignment # 2 Analysis of Data from Lab 2-Exercise 2 Table 2.6. Protein in Test Tubes prepared for
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SOLUTION MINING A Laboratory Exercise in Extracting Copper from a Synthetic Copper Ore Your Name __Mel Hine______________________ Partner’s Name __Jay Ranson____________________ Date _October 2‚ 2012____________ Introduction This laboratory exercise involves the use of dilute sulfuric acid (H2SO4) to leach copper
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market fund has a risk index of 3; the higher risk index associated with the stock fund simply indicates that it is the riskier investment. Innis’s client has also specified that at least $300‚000 be invested in the money market fund. a. Determine how many units of each fund Innis should purchase for the client to minimise the total risk index for the portfolio. b. How much annual income will this investment strategy generate? c. Suppose the client desires to maximise annual
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The Chelmno concentration camp was used as an extermination camp during the Holocaust. It was known by the Germans as Kulmhof concentration camp. This camp operated in two periods during the war; from December 8th‚ 1941 to March 1943‚ and from June 1944 to January 18th‚ 1945. The first period was open during the most deadly phase of the Holocaust known as Aktion Reinhard and the second period was open during the Soviet counteroffensive. This camp was specifically built to exterminate Polish Jews
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Event When World War II began there were 9 million people in concentration camps‚ when the war ended there were 3 million people. When the Japanese attacked Pearl Harbor President Ford put the japanese americans and the immigrants into internment camps because they looked like the enemy‚ the Japanese were not able to fight in the Military because they looked like the enemy. When Hitler became Chancellor he chose to put the Jews in concentration camps because he thought they looked like the enemy‚ Hitler
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million Jews” (Fact Retriever 1). Concentration camps were responsible for this act of mass murder. Many would hide for from those responsible for the camps. The Nazis built and run these camps to imprison those accused of committing crimes against the state or known as “enemies of the state”. During the holocaust‚ concentration camps left a mark on our society. First‚ they were created to detain so-called “enemies of the state”‚ so they were named concentration camps. In addition‚ the Nazi’s had
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