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17 Question (1 point)

A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the combustion of diborane represented by the

following balanced equation:

B₂H(g) + 30₂(g) →→→→ B₂O3(s) + 3H₂O(g)

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AHcombustion for this process is -1958 kJ/mol.

V

1st attempt

Assume that 0.541 g of diborane is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 7.854 kJ/°C at 22.61°C. What is the

final temperature of the calorimeter?

°C

4

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