elireed5364 elireed5364

25-04-2018
Chemistry

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How many moles of malachite should be formed when 1.5 moles of copper sulphate reacts with an excess of sodium carbonate?

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ChemistryHelper2024 ChemistryHelper2024

06-05-2018

2 Na₂CO₃ + 2 CuSO₄ + H₂O → CuCO₃.Cu(OH)₂ + 2 Na₂SO₄ + CO₂
Malachite molar mass = 221.1 g / mol
So 2 moles CuSO₄ produce 1 mole of malachite
so 1.5 mole CuSO₄ produce (0.75) mole malachite
Mass of malachite = 0.75 mole * 221.1 g/ mol = 165.83 g

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