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27 March, 11:42

Read the chemical equation.

Mg + 2HCl → MgCl2 + H2

How many moles of MgCl2 are produced from 3 moles of HCl?

0.3

0.5

1.0

1.5

+1
Answers (2)
  1. 27 March, 13:53
    0
    1.5 mol.

    Explanation:

    From the balanced equation: Mg + 2HCl → MgCl₂ + H₂,

    It is clear that 1.0 mol of Mg reacts with 2.0 moles of HCl to produce 1.0 mol of MgCl₂ and 1.0 mol of H₂.

    Using cross multiplication:

    2.0 moles of HCl → 1.0 mole of MgCl₂.

    3.0 moles of HCl →? mole of MgCl₂.

    ∴ The no. of moles of MgCl₂ are produced from 3.0 moles of HCl = (3.0 mol) (1.0 mol) / (2.0 mol) = 1.5 mol.
  2. 27 March, 15:41
    0
    0.5

    Explanation:

    Just took this test on edg
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