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Question on: WAEC Chemistry - 1989

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
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Correct Option: D

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