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17 December, 15:04

Use the equation 2Cu+O2 - > 2CuO to find how many grams of copper react to form 3.64 mol CuO.

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  1. 17 December, 17:29
    0
    231.31 g

    Explanation:

    We are given;

    The mass of CuO produced as 3.64 moles The equation fro the reaction as

    2Cu+O2 → 2CuO

    We are required to determine the mass of copper that would react.

    In this case, we are going to use the concept on mole ratio. From the balanced equation,

    2 moles of Cu reacts with 1 mole of oxygen to yield 2 moles of CuO

    Therefore, the mole ratio of copper (Cu) to CuO is 2: 2 or 1 : 1 (simplified) Therefore;

    Moles of Cu = moles of CuO

    Thus, moles of Cu = 3.64 moles

    But, Mass = Number of moles * atomic mass

    Atomic mass of copper = 63.546

    Thus,

    Mass of Cu = 3.64 moles * 63.546 g/mol

    = 231.31 g

    Thus, 231.31 g of copper will react to produce 3.64 moles of CuO
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