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16 May, 08:07

128.3 grams of methane (CH4) is equal to how many moles of methane

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  1. 16 May, 12:01
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    About 8.0 moles of methane. Number of moles = MassMolar mass.

    And thus we get the quotient:

    128.3⋅g16.04⋅g⋅mol-1=8.0⋅moles of methane.

    Note that the expression is dimensionally consistent, we wanted an answer in moles, and the quotients gives, 1mol-1=11mol=mol as required.
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