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26 August, 10:09

How many moles of copper are needed to react with sulfur to produce 0.25 moles Ol

copper (1) sulfide according to the following reaction:

2 Cu + S + Cuzs

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  1. 26 August, 11:04
    0
    0.50 moles of Cu

    Explanation:

    The balanced chemical equation for given synthetic reaction is,

    2 Cu + S → Cu₂S

    According to balance chemical equation,

    1 mole of Cu₂S is produced by = 2 moles of Cu

    So,

    0.25 moles of Cu₂S will be produced by = X moles of Cu

    Solving for X,

    X = 0.25 mol * 2 mol / 1 mol

    X = 0.50 moles of Cu

    Hence, as the molar ratio of Cu to Cu₂S is 2:1 hence, to produce 0.25 moles of Cu₂S we will need 0.50 moles of Cu.
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