Question

What rolume of Hydrogen at rtp is evolved, when 0.325g of Zinc reacts with dilute hydrochloric acid?​

Answer 1

Explanation:

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Answer 2

Explanation:

Zn+H

2

SO

4

→ZnSO

4

+H

2

At STP 224 mL of hydrogen corresponds to

1000×22.4

224

=0.01 moles of hydrogen. They will be produced from the reaction of 0.01 mole of Zn with 0.01 mole of sulphuric acid. Hence, the mass of zinc required is 65.38×0.01=0.65 g.