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Mass calculation

Mass calculation

Calculate mass of ammonium sulphate that can be produced from 70g of ammonium hydroxide
Use the equation below
Ar(H)=1 Ar(N)=14 Ar(O)=16 Ar(S)=32

Reply 1

robobeo

I'm guessing the relevant reaction is:
2NH₄OH + H₂SO₄ -> (NH₄)₂SO₄ + 2H₂O

First calculate moles of ammonium hydroxide:
mol = mass/mr = 70/(14+4+16+1) = 2
2:1 ratio of NH₄OH to (NH₄)₂SO₄means 1 mol (NH₄)₂SO₄
mass = mol*mr = 1*(2(14+4) + 32 + 16*4) = 132g

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