You mix 122 ml of 0.249 M LIOH with 122 ml of 0.55 M HF in a coffee-cup calorimeter, and the T of the solution rises from 21.0°C to 28°C (what does that mean T increasing?). What is the enthalpy of reaction/mole of LiF (AH in kJ/mol??)? Assume density of the solutions are all 1.00 g/ml, and the c of the solutions are 4.2 J/gK. Use the correct sign (+ vs -). Enter to 1 decimal place with the correct sign (+ or -).

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You mix 122 ml of 0.249 M LIOH with 122 ml of 0.55 M HF in a coffee-cup calorimeter, and the T of
the solution rises from 21.0°C to 28°C (what does that mean T increasing?). What is the enthalpy of
reaction/mole of LiF (AH in kJ/mol??)? Assume density of the solutions are all 1.00 g/ml, and the c
of the solutions are 4.2 J/gK. Use the correct sign (+ vs -).
Enter to 1 decimal place with the correct sign (+ or -).
Transcribed Image Text:You mix 122 ml of 0.249 M LIOH with 122 ml of 0.55 M HF in a coffee-cup calorimeter, and the T of the solution rises from 21.0°C to 28°C (what does that mean T increasing?). What is the enthalpy of reaction/mole of LiF (AH in kJ/mol??)? Assume density of the solutions are all 1.00 g/ml, and the c of the solutions are 4.2 J/gK. Use the correct sign (+ vs -). Enter to 1 decimal place with the correct sign (+ or -).
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