Question

Problem 2.14 : A piece of zinc weighing
0.635 g when treated with excess of dilute
H,SO, liberated 200 cm' of hydrogen at
STP. Calculate the percentage purity of the
zinc sample
Solution : The relevant balanced chemical
equation is
Zn +H,SO, → ZnSO, +H,
It indicates that 22.4 L of hydrogen at STP​

Answer 1

Explanation:

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