Question

124 g of phosphorus vapour has same volume as 71 g of chlorine gas at the same temperature and pressure
What is the formula of a molecule of phosphorus ?​

Answer 1

Answer:

this is your answer mate

Answer 2

Answer:

P4

Explanation

First find the moles of Cl.

= 71/35.5x 2 = 1Moles.

1 Moles = 24 dm3 x 1 = Vol of gas = 24 dm3

therefore 1 Moles of Phosphorus.

Moles = Mass/ RMM

RMM = 124g/1 = 124

Divide by the atomic mass to find out how many atoms

= 124/3= 4