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22 June, 23:43

How many moles of Ag will be produced from 46.0 g of Cu, assuming AgNO3 is available in excess?

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  1. 23 June, 00:04
    0
    1.44 mol

    Explanation:

    Given dа ta:

    Mass of Cu = 46 g

    Moles of Ag produced = ?

    Solution:

    Chemical equation:

    Cu + 2AgNO₃ → 2Ag + Cu (NO₃) ₂

    Number of moles of Cu:

    Number of moles = mass / molar mass

    Number of moles = 46 g/63.546 g/mol

    Number of moles = 0.72 mol

    Now we will compare the moles of Cu and silver from balance chemical equation:

    Cu : Ag

    1 : 2

    0.72 : 2*0.72 = 1.44 mol

    Thus from 46 g of Cu 1.44 moles of Ag is produced.
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