The volume occupies by 1.58g of a gas at s.t.p is 500cm3. What is the relative molecular mass of the gas?

(G.M.V at s.t.p = 22.40dm3)

A.

28

B.

32

C.

44

D.

71

View answer & explanation

Correct answer is D

500cm3 = 1.58g

=22400cm = (1.58g)/(500cm3) χ 22400cm3) = 70.78 g
= 71g

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