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Pertanyaan

Berapakah massa molekul relatif: CH4, H20, C2H4? Diketahui Ar C= 12; H= 1; O= 16

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  • Mr CH4
    = Ar C + 4xAr H
    = 12 + 4x1
    = 12+4
    = 16


    Mr H2O
    = 2xAr H + Ar O
    = 2x1 + 16
    = 2 + 16
    = 18


    Mr C2H4
    = 2xAr C + 4x Ar H
    = 2 x 12 + 4 x 1
    = 24 + 4
    = 28

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