An impure sample of zinc (Zn) is treated with an excess of
Chapter 8, Problem 73AP(choose chapter or problem)
Problem 73AP
An impure sample of zinc (Zn) is treated with an excess of sulfuric acid (H2SO4) to form zinc sulfate (ZnSO4) and molecular hydrogen (H2). (a) Write a balanced equation for the reaction, (b) If 0.0764 g of H2 is obtained from 3.86 g of the sample, calculate the percent purity of the sample, (c) What assumptions must you make in part (b)?
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