Question

the volume of 20 grams of hydrogen gas at STP is

Answer 1

Answer:

224 litre

Explanation:

no.of moles = mass given = 20 = 10

molecular mass 2

no. of moles =. volume.

molecular volume

10 = x.

22.4 ( STP value)

= 224 litre

Answer 2

Given:

20 grams of hydrogen gas.

To find:

The volume at S.T.P.

Solution:

To determine the volume of 20 grams of hydrogen gas at S.T.P we have to follow the below steps-

We know that the molecular weight of hydrogen gas is 2 grams.

Now at S.T.P 2 grams of hydrogen gas occupy 22.4 litres of volume.

Hence at S.T.P 20 grams of hydrogen gas occupy 22.4×20/2=224 litres of volume.

Hence at S.T.P 20 grams of hydrogen gas occupy 224 litres of volume.