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10 March, 06:24

A sample of iron absorbs 67.5 j of heat upon which the temperature of the sample increases from 21.5 °c to 28.5 °c. if the specific heat of iron is 0.450 j/g-k, what is the mass (in grams) of the sample?

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  1. 10 March, 06:46
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    Q = mcΔθ

    67.5 = m x 0.45 x (28.5 - 21.5)

    M = 67.5 / 3.15

    = 21.4 g
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