A. 44.0 g
B. 54.0 g
C. 26.0 g
D. 31.0 g
Correct Answer:
Option A – 44.0 g
Explanation
Density = mass/volume
∴ 1.98 = molecular mass/22.4
molecular mass = 1.98 X 22.4 = 44.35 ≅ 44.05
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