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
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The weight of sulphur dioxide contained in the same volume as that which contains 7.0 g nitrogen is :