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12 August, 06:45

Metallic copper is formed when aluminum reacts with copper (ii) sulfate. how many grams of metallic copper can be obtained when 54.0 g of al react with 319 g of cuso4? al + 3cuso4 â al2 (so4) 3 + 3cu

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  1. 12 August, 10:35
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    Answer is: 127 grams rams of metallic copper can be obtained.

    Balanced chemical reaction: 2Al + 3CuSO₄ → Al₂ (SO₄) ₃ + 3Cu.

    m (Al) = 54.0 g.

    n (Al) = m (Al) : M (Al).

    n (Al) = 54 g : 27 g/mol.

    n (Al) = 2 mol.

    m (CuSO₄) = 319 g.

    n (CuSO₄) = 319 g : 159.6 g/mol.

    n (CuSO₄) = 2 mol; limiting reactant.

    From chemical reaction: n (CuSO₄) : n (Cu) = 3 : 3 (1 : 1).

    n (Cu) = 2 mol.

    n (Cu) = 2 mol · 63.55 g/mol.

    n (Cu) = 127.1 g.
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