Q.
The weight of sulphur dioxide contained in the same volume as that which contains 7.0 g nitrogen is :
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a
8 g
b
16 g
c
32 g
d
64 g
answer is B.
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Detailed Solution
(i) Mol. wt. of N2 = 2 x 14 = 28 g mol- 28 g N2 at NTP occupy volume = 22400 mL7 g N2 at NTP occupy volume =22400mL28g×7g =5600 mL(ii) Volume of SO2 = 5600 mL ; mol. wt. of SO2 =32+(2x16)=64 g mol-22400 mL SO2 weigh = 64 g5600 mL SO2 weigh = 5600×6422400=16g