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How many joules (J) are needed to increase the temperature of 43.0g of aluminum from 25 degrees celcius to 50 degrees celcius? (Cp of Al=0.90J/g degrees of celcius) I also need the formula, data, and answer.

  • Chemistry -

    The formula is Q = mc(theta),
    where theta is difference in temperature
    (final- initial)

    m = 43g, Cp = 0.90 J/g & theta = 25 degree C

    Substitute all the values into the equation above:
    Q = (43)(0.90)(25) = 967.5 J

  • Chemistry -

    Note the correct spelling of celsius.

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