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13 February, 20:48

How many moles of CaO will be produced from 23.9 g of Ca?

2Ca (s) + O2 (g) - 20:0 (3)

mol

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  1. 13 February, 21:14
    0
    0.6 moles of CaO will produced.

    Explanation:

    Given dа ta:

    Mass of calcium = 23.9 g

    Moles of CaO produced = ?

    Solution:

    Chemical equation:

    2Ca + O₂ → 2CaO

    Number of moles of calcium:

    Number of moles = mass / molar mass

    Number of moles = 23.9 g / 40 g/mol

    Number of moles = 0.6 mol

    Now we will compare the moles of calcium and CaO.

    Ca : CaO

    2 : 2

    0.6 : 0.6

    0.6 moles of CaO will produced.
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