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gizmo
gizmo asked in Science & MathematicsChemistry · 1 decade ago

how many moles are in 167.832g of Carbon?

determine the overall number of moles of Carbon present in 378 g of Hydrogen Cyanide (HCN)

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  • W
    Lv 4
    1 decade ago
    Favorite Answer

    n = m/M

    where n is numer of mols m is mass and M is molecular weight.

    you know the mass = 167.832

    the molecular weight of Carbon is found on the periodic table and = 12

    so just 167.832grams/12grams/mol

    Do the same for HCN but now you need the atomic weight of H, C and N and add them together to get the molecular weight (M)

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