Question

The percentage of nitrogen by mass in ammonium sulphate is closest to (atomic masses h=1,n=−14,o=16,h=1,n=−14,o=16,s=32s=32).

Answer 1

molar mass of (NH4)2SO4=132 g

atomic mass of nitrogen =14g

mass% of nitrogen=(14*2)/132*100 [since two atoms of nitrogen are present]

                            =21.2%

Answer 2

Answer:

21.2%

Explanation:

21.2% is the answer.

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