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A chemist carefully measures the amount of heat needed to raise the temperature of a 889.0mg...

A chemist carefully measures the amount of heat needed to raise the temperature of a 889.0mg sample of a pure substance from 26.8°C to 40.0°C . The experiment shows that 49.1J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits.

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Answer #1

we have:

Q = 49.1 J

m = 889.0 mg = 0.8890 g

Ti = 26.8 oC

Tf = 40.0 oC

we have below equation to be used:

Q = m*C*(Tf-Ti)

49.1 = 0.8890*C*(40.0-26.8)

C = 4.18 J/g.oC

Answer: 4.18 J/g.oC

Feel free to comment below if you have any doubts or if this answer do not work

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