Question

27.
Molecular weight of a gas, 11.2 litres of which at NTP weighs 14 g, is:
(D) 14 x 11.2
(A) 14
(B) 28
(0) 12​

Answer 1

Answer:

A IS YOUR ANSWER

Explanation:

Answer 2

Given:

11.2 litres of gas weighs 14g at NTP

To find:

The molecular weight of the gas

Solution:

The molecular weight of a gas is the weight of 22.4 litres of a gas at STP or NTP

By unitary method:

Weight of 11.2 litres of gas= 14g

So, the weight of 22.4 litres of the gas = (14/11.2)* 22.4 = 28g

The molecular weight of the gas is 28g.