Answer to Question #303312 in General Chemistry for Chris

Question

How many moles of ammonium sulfate contain 6.0×10²⁵ atoms of N

N?

Answer 1

The molecular formula of ammonium sulphate is (NH₄)₂SO₄

one molecule of ammonium sulphate has 2 N atom.

so,one mole of ammonium sulphate is 2 mole of N atom and ha 2× 6.023×10²³ N atom.

Total number of N atom= 6.0×10²⁵ atom

Total number of moles= \frac{6.0×10²⁵ }{12×10²³}= 50 mole

so mole of ammonium sulphate is 25 mole.