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10-02-2024
Chemistry

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24.07g of an unknown sample, with a molar mass of 42.20g/mol, reacts with excess reagents inside a simple calorimeter..
The outside of the calorimeter is made of an aluminum cup with a mass of 85.4g.
There is 105g of water inside the calorimeter. The temperature of the entire calorimeter increases from 20.0°C to 29.0°C.
What is the molar enthalpy of reaction, in kJ/mol, with respect to the unknown?

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