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

    Feb 28, 2007, 12:18 PM
    chemistry equation
    How many grams of CO2 are formed by complete reaction with 33.7 grams of limestone? What is the volume of CO2 at STP?

    CaCO3(s)+2HCl(aq)-->CaCl2(aq)+CO(g)+H2O(l) the first 3 and all the 2's except the first one are small.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Feb 28, 2007, 12:57 PM
    Do you know how to use moles? You can work out the number of moles of CO2, and then the mass. For the volume you need to use

    PV = nRT
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