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chemistry

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a sample of H2O with a mass of 46.0 grams has a temperature of -58.0 degress celcius. how many joules of energy are necessary to melt 46.0 grams of ice?

  • chemistry - ,

    Note the correct spelling of celsius.
    q to move temperature of ice from -58 to zero.
    q = mass ice x specific heat ice x [Tfinal-Tinitial].
    Tfinal is zero and Tinitial is -58.

    q to melt the ice.
    q = mass ice x heat fusion.

    total Q = q1 + q2.

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