Question

The number of moles of H₂ in 0.224 L of hydrogen gas at STP (273 K, 1 atm) assuming ideal gas behaviour is ………….. 

(A) 1 

(B) 0.1

(C) 0.01 

(D) 0.001

Answer 1

Correct option is: (C) 0.01

Using ideal gas equation

PV = nRT

1 \(\times\) 0.224 = n \(\times\) 0.082 \(\times\) 273

n= \(\frac {1\times0.224}{0.082\times273}\) 

n = 0.01 mole

Answer 2

Correct option is (C) 0.01