Answer to Question #307776 in General Chemistry for des

Question

What volume of hydrogen gas at STP is produced as sulfuric acid acts on 24 g of

calcium?

Answer 1

Reaction between sulphuric acid and calcium is as shown below

$Ca + H_2SO_4 \longrightarrow CaSO_4 +H_2$

From above reaction 1 mole Ca react with 1 mole sulphuric acid to give 1 mole calcium sulphate

Mole of calcium given = 0.6

So from above reaction mole of H₂ produced is 0.6 mole.

From Avogadro's hypothesis volume of 1 mole gas at STP is 22.4 L

So, volume of 0.6 mole hydrogen gas is 13.44L

Volume of hydrogen produced at STP=13.44 L