An impure sample of zinc (Zn) is treated with an excess of sulfuric acid (H,SO,) to form zinc sulfate (ZnSO4) and molecular hydrogen (H2). (a) Write a balanced equation for the reaction. Zn(s) + (b) How many moles are in 3.29 g of pure zinc? mol (c) How many moles of hydrogen gas are formed if one mole of zinc is treated with excess sulfuric acid? mol (d) If 3.29 g of pure Zn is treated with excess sulfuric acid, how many grams of hydrogen could be collected? g (e) If 0.0726 g of H, is obtained from 3.29 g of impure sample, what is the percent purity of the sample? 0%

An impure sample of zinc (Zn) is treated with an excess of sulfuric acid (H,SO,) to form zinc sulfate (ZnSO4) and molecular hydrogen (H2). (a) Write a balanced equation for the reaction. Zn(s) + (b) How many moles are in 3.29 g of pure zinc? mol (c) How many moles of hydrogen gas are formed if one mole of zinc is treated with excess sulfuric acid? mol (d) If 3.29 g of pure Zn is treated with excess sulfuric acid, how many grams of hydrogen could be collected? g (e) If 0.0726 g of H, is obtained from 3.29 g of impure sample, what is the percent purity of the sample? 0%

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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