solute/kg solvent to find the number of moles in 20% antifreeze solution. 6. Using the formula molar mass = grams/moles calculate the molecular mass of antifreeze in the 20% solution. 7. Average the molar masses you calculated in questions 3 and 6. 8. The formula for antifreeze is C2H6O2. Calculate its molarmass using the periodic table. 9. Calculate your percent error. Conclusion: This lab was a phenomenal success! The purpose of determining the freezing points of water
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The questions below draw on the material in Chapter 11 and the associated lecture material. 1. What distinguishes money from other assets in the economy? Money is the most liquid asset. 2. What is commodity money? What is fiat money? Which kind do we use? Commodity money may be used for other purposes. Fiat money is useful only as money. 3. What are demand deposits? Why should they be included in the stock of money? Demand deposits are balances in bank accounts that can be accessed on demand
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Unit 6 questions Chapter 16: 1) Along with railroads‚ the Republicans’ protective tariffs helped build other U.S. industries‚ including textile and steel manufacturing in the Northeast and Midwest and (through a tariff on imported wool) sheep ranching in the West. Tariffs also funded government itself. Tariffs provided the largest share of revenue for the treasury‚ and helped fund the projects. 2) Farmers on the Great Plains faced the challenge of a hostile environment. In the grasslands‚ a cloud
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were 3‚ 10‚ 11‚ 13‚ 17‚ 18‚ 22‚ 24‚ 26‚ 30‚ 31‚ 39‚ 42‚ 45‚ 47‚ and 49 (Table 2b). This indicated that these barrels were above the regulated amount. During this same experiment‚ 26 barrels exceeded the 5% (50ppt) threshold. These were barrels 3‚ 4‚ 6‚ 8‚ 10‚ 11‚ 13‚ 17‚ 18‚ 20‚ 22‚ 24‚ 25‚ 26‚ 27‚ 30‚ 31‚ 34‚ 38‚ 39‚ 42‚ 44‚ 45‚ 47‚ 49‚ and 50 (Table 2a‚ Table 2b). These barrels were not only above the regulated amount‚ but they indicate that measuring using a refractomer would be better to use
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1‚000‚000‚000‚000‚000‚000 1‚000‚000‚000‚000‚000 1‚000‚000‚000‚000 1‚000‚000‚000 1‚000‚000 1‚000 100 10 1 0.1 0.01 0.001 0.000001 0.000000001 0.000000000001 0.000000000000001 0.000000000000000001 1018 1015 1012 109 106 103 102 101 1 10–1 10–2 10–3 10–6 10–9 10–12 10–15 10–18 Name exa peta tera giga mega kilo hecto deka — deci centi milli micro nano pico femto atto Abbreviation E P T G M k h da — d c m m n p f a Physical Constants Acceleration due to gravity Universal gravitational constant Electron
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Kiley O’Toole Lab Report 3 Purpose The purpose of this lab was to uncover the number of layers of zinc atoms around a piece of galvanized iron. This was done by pouring the hydrochloric acid onto the galvanized iron‚ thus removing the zinc from the piece of metal. Laboratory Procedure 1. Measured and recorded the mass of a piece of galvanized iron using a centigram balance and a ruler 2. Measured and recorded the length and width of the galvanized iron using the ruler 3. Put the
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you the parts of the Bible that I know. If someone ever asks you why you believe in your religion‚ I hope what I’ve wrote for you will help you summarize your faith and why you believe in God. This year I learned about Isaiah 6 and what it means. As a summary‚ Isaiah 6 explains how King Uzziah was one of the greatest kings of all time. He stepped into an unauthorized room and died of leprosy. Everyone was disappointed including Isaiah. Until he saw God come down from heaven‚ this Exposed Isaiah
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Quiz 6 Question 1 0 out of 1 points The first Spanish language television station in the United States was established in Los Angles in the mid 20th Century‚ as the city’s population was mostly Mexican Americans‚ Latinos‚ and Mexican immigrants. Selected Answer: True Correct Answer: False Question 2 0 out of 1 points According to the author‚ in the 20th Century‚ the working class community among Mexican Americans was responsible of making sure many of the newspapers continued
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Post Quiz #6 1. The two types of shopping products are: * -heterogeneous and homogeneous * -unsought and convenience * -generic and family * -consumer and business * -exclusive and intensive 2. Lands’ End clothing catalogue retailer offers a satisfaction guarantee on all merchandise it sells. In other words‚ Lands’ End gives its customers a(n) _____ warranty. * -implied * -descriptive * -full
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Constituent of “Panacetin” Recrystallization& Melting-Point Measurement Organic Chemistry Lab Introduction: Panacetin purportedly includes sucrose‚ aspirin‚ and acetaminophen. However‚ the accuracy of Panacetin’s contents has been called into question by the Association for Safe Pharmaceuticals. Therefore‚ the lab must discover the accuracy of the ingredients listed on Panacetin’s label. The unknown in this experiment is presumed to be something
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