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When 10.0 grams of LiBr are dissolved in 100.0 grams of water in a calorimeter, the...

When 10.0 grams of LiBr are dissolved in 100.0 grams of water in a calorimeter, the temperature increases from 30.00°C to 42.22°C. Use this information to determine the enthalpy change in units of kJ/mol of reaction. Assume the specific heat of the solution is the same as that of pure water (4.18 J/g •°C).

-120. kJ
-4.43 kJ
-4.88 kJ
-56.2 kJ
-48.8 kJ
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