a.) How many moles of copper ii sulfate will be needed to create 3.40 moles of aluminum sulfate if excess aluminum is available?
b.) How many moles of copper metal will be created from 2.30 moles of aluminum metal if copper ii sulfate is in excess?
Solid aluminum reacts with copper II sulfate?
2016-02-24 5:13 pm
回答 (2)
2016-02-24 5:22 pm
✔ 最佳答案
a)2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu
3 moles of CuSO₄ creates 1 mole of Al₂(SO₄)₃.
No. of moles of Al₂(SO₄)₃ = 3.40 mol
No. of moles of CuSO₄ needed = 3.40 × 3 = 10.2 mol
b)
2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu
2 moles of Al creates 3 moles of Cu.
No. of moles of Al = 2.30 mol
No. of moles of Cu created = 2.30 × (3/2) = 3.45 mol
2016-02-24 5:13 pm
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