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2 December, 02:11

Aluminum metal has a specific heat of 0.900 j/g•°c. calculate the amount of heat required to raise the temperature of 10.5 moles of al from 30.5 °c to 225°c. a) 1.84 kj

b. 2.41 kj

c. 65.1 kj

d. 49.6 kj

e. 57.3 kj

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  1. 2 December, 04:49
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    D.

    Q = m·ΔT·C (specific heat) = n·M·ΔT·C=10,5mol·27 g/mol· 194,5 (225-30,5) ·0,9=49600J=49,6kJ.
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