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Cortisone is a molecular substance conta...

Cortisone is a molecular substance containing 21 atoms of carbon per molecule. The mass percentage of carbon in cortisone is 69.98%. Its molar mass is

A

176.5

B

252.2

C

287.6

D

360.1

Text Solution

Verified by Experts

The correct Answer is:
D
Let molar mass be M.
Mass of 21 carbon atoms = 252
% of carbon ` = ( 252 xx 100 )/(M ) = 69.98 implies M = 360 .1`
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