When a 0.245-g sample of benzoic acid is combusted in a bomb calorimeter, the temperature rises 1.641 C When a 0.275-g sample of caffeine, CH10O,N, is burned, the temperature rises 1517 °C. Using the value 26 38 k.J/g for the heat of combustion of benzoic acid, calculate the heat of combustion per mole of caffeine at constant volume. 4208.5 kJ/mol Previous Answers Completed Part B Assuming that there is an uncertainty of 0.002 °C in each temperature reading and that the masses of samples are measured to 0.001 g. what is the estimated uncertainty in the value calculated for the heat of combustion per mole of caffeine? Express your answer using two significant figures.

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homework-3-Attempt 1
tem 27
< 27 of 30
Part A
When a 0.245-g sample of benzoic acid is combusted in a bomb calorimeter, the temperature rises 1.641 C When a 0.275-g sample of caffeine, CgHj0O,N, is burned, the temperature rises 1.517 °C. Using the
value 26 38 kJ/g for the heat of combustion of benzoic acid, calculate the heat of combustion per mole of caffeine at constant volume.
4208.5 kJ/mol
Previous Answers
Completed
Part B
Assuming that there is an uncertainty of 0.002 °C in each temperature reading and that the masses of samples are measured to 0.001 g, what is the estimated uncertainty in the value calculated for the heat of
combustion per mole of caffeine?
Express your answer using two significant figures.
kJ/mol
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Transcribed Image Text:session.masteringchemistry.com/myct/itemView?assignmentProblemlD=1635009938lattemptNo=1 homework-3-Attempt 1 tem 27 < 27 of 30 Part A When a 0.245-g sample of benzoic acid is combusted in a bomb calorimeter, the temperature rises 1.641 C When a 0.275-g sample of caffeine, CgHj0O,N, is burned, the temperature rises 1.517 °C. Using the value 26 38 kJ/g for the heat of combustion of benzoic acid, calculate the heat of combustion per mole of caffeine at constant volume. 4208.5 kJ/mol Previous Answers Completed Part B Assuming that there is an uncertainty of 0.002 °C in each temperature reading and that the masses of samples are measured to 0.001 g, what is the estimated uncertainty in the value calculated for the heat of combustion per mole of caffeine? Express your answer using two significant figures. kJ/mol Submit Request Answer 22:30 O Aramak için buraya yazın Masaústü A D O 40) 16.01.2021 80 W R
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