Find the mass of the nitrogen contained in 1 kg of KNO3
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Hi there!
Molar Mass of the KNO₃ = 100 g/mol.
Mass of the nitrogen present in 1 mol. of KNO3 = 14 g.
Mass of the KNO3 = 1 kg.
= 1000 g.
Now,
∵ 100 g of the KNO3 contains 14 g of the N.
∴ 1 g of the KNO3 contains 14/100 g of the N.
∴ 1000 g of the KNO3 contains 140 g of the N.
Hence, the Mass of the N is 140 g.
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