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Math Help - Urgent Help!!

  1. #1
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    Urgent Help!!

    Some physical properties of water are shown below.
    melting point0.0°Cboiling point100.0°Cspecific heat solid 2.05 J/g·°Cspecfic heat liquid4.184 J/g·°Cspecific heat gas2.02 J/g·°CH° fusion6.02 kJ/molH° vaporization40.7 kJ/mol
    How much energy is required to raise the temperature of 27.1 g of water from -12.5°C to 94.5°C?
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  2. #2
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    I know you have to use Q=MCdeltaT but I still can't get it
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  3. #3
    Senior Member
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    Mar 2008
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    heat = mass * specific heat * delta T

    heat = (27.1 g)*(4.186 J/gram°C)*(107°C)


    Does that work for ya? I am a long time removed from this stuff, and haven't done any of it in ages. You can double check by working backwards.

    -Andy
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