A 13.0 mL sample of 0.977 M NaOH is mixed with 19.3 mL of 0.987 M HCl in a coffe

Question

A 13.0 mL sample of 0.977 M NaOH is mixed with 19.3 mL of 0.987 M HCl in a coffee-cup calorimeter. The enthalpy of the reaction, written with the lowest whole-number coefficients, is -55.8 kJ. Both solutions are at 17.5°C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, the specific heat of all solutions is the same as that of water, and volumes are additive.

Explanation / Answer

A 13.0 mL sample of 0.977 M NaOH is mixed with 19.3 mL of 0.987 M HCl in a coffe

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