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    heavymental's Avatar
    heavymental Posts: 1, Reputation: 1
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    #1

    May 13, 2010, 11:51 AM
    (Cu+CuO)+h2so4=CuSO4+H2O+SO2
    a mixture of copper and copper oxide mass of 2 g acted with concentrated H2SO4.V (SO2) = 0.56 liters. Find the mass of Cuprum oxide.HELP ME,PLEASE!!
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #2

    May 14, 2010, 09:31 PM

    First you start by balancing the equation.



    Second you can use the molecular information to find out exactly what amount of what goes with what

    2g = Cu + CuO

    H2SO4. = 0.56L (I am guessing you mean pure liquid sulfuric acid)

    1 Mole of Cu = 64g
    1 Mole of CuO = 80g
    1 Mole of H2SO4 = 98g
    H2SO4 has a densityo of 1.84g/cm3
    This means:
    1 Mole of H2SO4 = 53.25mL

    Can you take it from here?
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