A calorimeter contains 270 g of water at 110 c when 210 g, Ask an Expert

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A calorimeter contains 27.0 g of water at 11.0 C. When 2.10 g of X (a substance with a molar mass of 80.0 g) is added, it dissolves via the reaction
X (s) +H2O (l) -> X (aq)

and the temperature of the solution increases to 25.0 C.
Calculate the enthalpy change, , for this reaction per mole of X.

Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 J/ g.C and 1.00 g/mL ] and that no heat is lost to the calorimeter itself, nor to the surroundings.

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Category:- Chemistry
Reference No.:- M91050818

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