Chemistry

Duralin is an alloy of aluminium containing
4.5% manganese, 3.5% copper, and 0.45%
magnesium. How much magnesium is present
in a 32 g sample of this alloy?
Answer in units of mol

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  1. How many Mg WHAT?
    g Mg = 32*0.0045 = ?
    mols Mg = ?g Mg/atomic mass Mg = y
    #atoms Mg = y mols Mg*6.02E23 = ??

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  2. 32g*.45gMg/100gDuralin*1mol/24.305gMg

    0.005924707mol Mg

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