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Calculate the energy change (with the correct sign) when the temperature of 100.0 mL of liquid...

Calculate the energy change (with the correct sign) when the temperature of 100.0 mL of liquid water decreases by 3.40 ∘ C.

Calculate the mass of KCl needed to absorb the same amount of energy when dissolved in water. ΔHsolution(KCl)=983.5 J/mol.

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