34.05 mL of phosphorus vapours weighs 0....

`34.05 mL` of phosphorus vapours weighs `0.0625 g` at `546^(@)C` and `0.1` bar pressure. What is the molar mass of phossphorus ?

1247.7 g

`1147.0` g

1047` g

947.7 g

Text Solution

Verified by Experts

The correct Answer is:

`because` PV = nRT or `P = (n)/(v) RT = (W)/(M xx V) RT`
[M = Molar mass of P]
M = 1247.7 g

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