A bomb calorimeter contains900 g of water after a1.89 g sample of benzoic acid is burned(Heat of...

Question

A bomb calorimeter contains900 g of water after a1.89 g sample of benzoic acid is burned(Heat of Reaction=-3227kJmol). If the temperature of the water increases8.32°C, what is the calorimeter constant inJ°C? The molar mass of benzoic acid is122.12 g/mol.

David · Accepted Answer

For water 
M=900g 
C=4.184J/g° C 
ΔT=8.32° C 
qcalorimeter = 31,3295
For Benzoic acid 
ΔH=-3227 kJ/mol 
M=1.89g 
n=(1.89g)(1/122.12g/mol) 
n=0.1548 mol 
q= - 49.

A bomb calorimeter contains900 g of water after a1.89 g sample of benzoic acid is burned(Heat of Reaction=-3227kJmol). If the temperature of the water increases8.32°C, what is the calorimeter constant...

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