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19 December, 22:13

Use the equation

2HgO--> 2Hg+O2

to find how many moles of mercury are produced if 27 g of oxygen are produced.

2.1

1.3

2.6

2.4

+1
Answers (1)
  1. 20 December, 01:33
    0
    1.68 mole mercury produced.

    Explanation:

    Given dа ta:

    Mass of oxygen produced = 27 g

    Moles of mercury produced = ?

    Solution:

    Chemical equation:

    2HgO → 2Hg + O₂

    Moles of oxygen:

    Number of moles = mass/molar mass

    Number of moles = 27 g / 32 g/mol

    Number of moles = 0.84 mol

    Moles of mercury produced:

    O₂ : Hg

    1 : 2

    0.84 : 2*0.84 = 1.68 mol
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