Question

Find the volume of 20g H2 at STP

Answer 1

Answer:

224 Litres

Explanation:

The question can be solved by applying mole concept

Method✍️:-)

Step 1

Find moles(n) first

n = Given mass/Molecular mass

As per question given mass of H2 is 20 gram

molecular mass of hydrogen is 1 gram

n = 20/(2×1). {H has 2 atoms for one atom mass is one gram so for 2 atoms mass will be 2 grams.}

n=10 mol

Step 2

moles to volume at STP will be

n × 22.4 = 10× 22.4 = 224 Litres