If 200cm 3 of a gas at s.t.p. has a mass of 0.268g, what is its molar mass? (Molar volume of a gas at s.t.p. = 22.4 dm3)

A.

300g

B.

200g

C.

150g

D.

30g

E.

15g

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Correct answer is D

No explanation has been provided for this answer.

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