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    ifeelsolost's Avatar
    ifeelsolost Posts: 6, Reputation: 1
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    #1

    Mar 7, 2011, 03:47 PM
    How to find predicted volume
    .5 g Mg and .0824 mole HCl

    Find limiting
    Excess
    And predicted volume
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
    		  
    #2

    Mar 7, 2011, 10:22 PM

    1. Write the equation for the occurring reaction.
    2. Balance that equation.
    3. Work out the number of moles of Mg you have.
    4. From your equation and the given data, find the limiting reactant.
    5. Hence, find the reactant being in excess.
    6. Using the limiting reactant, find the number of moles of hydrogen gas released.
    7. Use the fact that at rtp, 1 mol of gas occupies 24 L.

    What do you get? :)
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