Based on the experimental data provided, complete the following calculations. A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the moles of CuCl 2.2H2O used: Answer: A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the moles of pure copper (Cu) produced: Answer: A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the %yield of copper produced, i.e. the percentage recovery of copper compared to the expected amount. (Hint: The reagents used are always in excess to the copper species (sodium hydroxide, sulfuric acid, and zinc). Hence, the copper species is always the limiting reagent. This means that the ncun cuc12.2H20 at 100% yield.) (Hint 2: If the copper produced was not adequately dried before weighing, then we may end up calculating a yield of >100%! Why is this?) Answer:

Based on the experimental data provided, complete the following calculations. A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the moles of CuCl 2.2H2O used: Answer: A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the moles of pure copper (Cu) produced: Answer: A student ended the experiment with 0.1736g of copper, having started with 0.2812g of CuCl 2.2H2O. Calculate the %yield of copper produced, i.e. the percentage recovery of copper compared to the expected amount. (Hint: The reagents used are always in excess to the copper species (sodium hydroxide, sulfuric acid, and zinc). Hence, the copper species is always the limiting reagent. This means that the ncun cuc12.2H20 at 100% yield.) (Hint 2: If the copper produced was not adequately dried before weighing, then we may end up calculating a yield of >100%! Why is this?) Answer:

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 69CP: You have two distinct gaseous compounds made from element X and element Y. The mass percents are as...

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