Question

At STP 11.2 litre of Co2 weighs 22 gram what will be its molar mass?

Answer 1

Hey buddy! Here's your answer!

At. 22.4 L, it weighs equal to its molar mass.

At 11.2 L, it weighs 22 g.

22.4 L => Molar mass

11.2 L => 22 g

Therefore,

Molar mass x 11.2 L = 22.4 L x 22 g

Molar mass = 22.4 L x 22 g / 11.2 L

                    = 2 x 22 g

Molar mass = 44 g

You can also crosscheck this by taking molar masses of Carbon and Oxygen separately.

C = 12 g

O2 = 32 g

CO2 = 12 + 32

        = 44 g

Hope this helps! :)