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13 April, 03:35

How many moles are in 64 grams of methane, CH4?

A. 4

B. 32

C. 64

D. 13

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Answers (1)
  1. 13 April, 03:37
    0
    A. 4.

    Explanation:

    We can use the relation:

    no. of moles (n) = mass/molar mass.

    mass = 64.0 g, molar mass = 16.0 g/mol.

    ∴ no. of moles (n) = mass/molar mass = (64.0 g) / (16.0 g/mol) = 4 mol.
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