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    poeticmelody's Avatar
    poeticmelody Posts: 23, Reputation: 8
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    #1

    Jun 23, 2010, 03:51 PM
    what volume of CO2 is produced when 2g of CuCO3 is heated with a bunsen burner?
    Hey, I worked this out by adding up the molar mass of CuCO3 = 123.54 g/mol-3.
    Then divide the mass 2g by molar mass to give me the number of moles 0.0162.
    Is this correct? I think I am along the right lines but I'm not sure, any help would be great, thank you :)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jun 23, 2010, 11:20 PM

    Yes, you're on the right track.

    Now, you have the initial number of moles of CuCO3.

    Write the balanced equation:



    One mole of CaCO3 produces 1 mole of CO2.
    So, 0.0162 moles of CaCO3 will give 0.0162 moles of CO2!

    Now, you should know that at room temperature, one mole of gas occupies 24 dm^3 (or 24 L)

    Work out how much volume does the 0.0162 mol of CO2 occupy, and you're done! :)

    I hope it helped!
    poeticmelody's Avatar
    poeticmelody Posts: 23, Reputation: 8
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    #3

    Jun 27, 2010, 08:16 AM

    Yes, thank you unknown008. You were a great help once again :)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #4

    Jul 1, 2010, 01:22 AM

    You're welcome :)
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