What is the mass of a sample of aluminum that absorbs 596 J of heat when the temperature is raised from 30.0°C to 100.1°C? Specific heat of aluminum = 0.900 J/g oC

Question

Chemistry

Victor Lam

14 January, 02:45

What is the mass of a sample of aluminum that absorbs 596 J of heat when the temperature is raised from 30.0°C to 100.1°C? Specific heat of aluminum = 0.900 J/g oC

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Crystal Wilson · Answer 1

Answer is: the mass of a sample of aluminum is 9.45 grams.

ΔT = 100.1°C - 30.0°C.

ΔT = 70.1°C.; change in temperature of a sample of aluminium.

Cp (Al) = 0.900 J/g·°C; specific heat capacity for aluminium.

Q = 596 J; heat absorbed.

Q = m (Al) · ΔT · Cp (Al).

m (Al) = Q : (ΔT · Cp (Al)).

m (Al) = 596 J : (70.1°C · 0.900 J/g·°C).

m (Al) = 9.45 g; mass of aluminium sample.