t-Butyl Chloride was synthesized from t-Butyl Alcohol using hydrochloric acid in separatory funnel; isolation of t-Butyl Chloride was done under distillation conditions. The experiment resulted in 8.29grams of purified compound‚ which is a 66.27 percent yield. Procedure: As per handout with changes Equation: Mechanism: Results: (Scan IR spectrum) Compounds t-Butyl Chloride(Experimental) t-Butyl Chloride(Book Value) Molecular Weight (g/mol) 92.5681 92.5681 Density (g/cm3) 0.842 0
Premium Solvent Alcohol Distillation
Percent Copper in Brass Background The scientific concepts involved in this lab include Spectroscopy‚ Beer’s law‚ Calibration curve‚ concentration‚ and electronic transitions. The main objective of this experiment is to see how the percent composition of brass can be determined to verify the properties influenced by copper and zinc. Brass is a generic term for alloys of copper and zinc. The main technique used in this experiment is Spectroscopy. The three equations used in this lab are: Y = mx
Premium Zinc Ammonia Sulfuric acid
Percent Composition Report Hypothesis : By using seperation techniques properly‚ the 3 substance such as; water‚ sand‚ and salt can be seperated and the percent composition of each substance. Which will then be calculated theoritically and after comparison with the actual result‚ the accuracy of the 2 result can be found. Aim : The aim of this experiment is to compare the gravimetric result of the original mixture and the separated substance. The other objective is to calculate each percent
Premium Mathematics Mixture Analytical chemistry
(grams/mole) = 0.1513 moles of NaHCO3 0.135 Moles of NaHCO3 × 58.4428 (Molar mass of NaCl) Giving me 8.8240 (grams) NaCl as my theoretical yield. 4. What is the actual yield of NaCl in your experiment? Show your work below. (4 points) The actual yield is: 31.52 (grams) – 24.35 (grams) = 7.14 (grams) NaCl (After the evaporation of water) 5. Determine the percent yield of NaCl in your experiment‚ showing all work neatly in the space below. (5 points) Actual yield ÷ Theoretical yield 7.17 (grams) ÷ 8.8420
Free Stoichiometry Yield Water
In contrast‚ a measure of precision can be made using the results. Precision refers to how close a set of results are to each other. In this lab‚ the percent relative average deviation can be used as an indicator of preciseness. Percent relative average deviation is a measure of how tightly clustered a set of data points is around a mean. A low percent relative average deviation indicates that the data points are tightly clustered around the mean; moreover‚ if the
Premium Measurement Test method Accuracy and precision
Assignment 3: The Comparative Essay Selecting from the following topics and readings‚ create a research essay of 900 to 1‚000 words. Note: While a research essay normally involves conducting your own research‚ for this assignment‚ the research sources are provided (i.e.‚ the readings listed are the research sources to be used). Topics: 1. Choose a basis for comparison and write a comparison of the approaches to the relationship between youth employment and the economy presented in "Can Generation
Premium Generation X Demographics Youth
Phoenix Credit Policy Decisions Collins Office Supplies is considering a more liberal credit policy to increase sales‚ but expects that 9 percent of the new accounts will be uncollectible. Collection costs are 5 percent of new sales‚ production and selling costs are 78 percent‚ and accounts receivable turnover is five times. Assume income taxes of 30 percent and an increase in sales of $80‚000. No other asset buildup will be required to service the new accounts. a. What is the level of accounts
Premium Investment Balance sheet Rate of return
Renewables contributed 19 percent to our energy consumption and 22 percent to our electricity generation in 2012 and 2013‚ respectively. Both‚ modern renewables‚ such as hydro‚ wind‚ solar and biofuels‚ as well as traditional biomass‚ contributed in about equal parts to the global energy supply. Worldwide investments in renewable technologies amounted to more than US$ 214 billion in 2013‚ with countries like China and the United States heavily investing in wind‚ hydro‚ solar and biofuels. Renewable
Premium Wind power Renewable energy Energy development
Antiliqwa Fisher 7/7/2013 Assessment Title (Monsters Lesson 08 Arthurian Legends) Merlin made appear a sword sticked on an iron anvil over a rock‚ with a legend that said: "This is Excalibur sword. The man capable to take it from this anvil‚ will be King of England" King Arthur Shield by Marto of Toledo Spain. Ledendary medieval shield of the knights of Round table. Armour suit of Prince Arthur son and heir of King Henry VII and elder brother of Henry VIII. On display at the Tower of
Premium Henry VIII of England King Arthur Henry VII of England
Mike Elisio Professor Larson Political Science 223 10-17-12 Part 1: PA-08 POLITICAL SETTING AND STRATEGIC CONTEXT This summer‚ I was fortunate enough to get an internship on a local U.S. Congress campaign. I live in the Pennsylvania 8th district and worked on the campaign of Kathy Boockvar‚ Democratic challenger to Republican incumbent Mike Fitzpatrick. I was able to meet many interesting people and clarify my own political ideals‚ but most importantly I got to learn about campaigns and the
Premium Election Elections