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Q.

Calculate the mass percentage of nitrogen in hvdrazinium sulphate N2H52SO4.

molar mass (g mol-1) 
N2H52SO4162.2

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a

51.2

b

10.8

c

34.5

d

17.3

answer is C.

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Detailed Solution

The mass percentage of nitrogen,

14×2×2162.2×100=34.5%.

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