Question

How to calculate volume of 20 g of hydrogen at STP

Answer 1

Hey friend,

We already know that

1 mole of any gas occupies 22.4 litres at STP.

Here,given weight of hydrogen is 20 g

Molecular weight of hydrogen is 2 g

No.of moles = given weight/molecular weight

→ = 20/2 = 10 moles

1 mole -------------22.4 litres

10 moles ------------?

→ 10 moles × 22.4 litres / 1 mole

→ 224 litres

volume of 20 g of hydrogen at STP is 224 litres

Hope it helps