When 500 ML of 1 $\ell$ )
Assume That the Solution Density Is 1

question 63

Multiple Choice

When 50.0 mL of 1.60 M of HCl(aq) is combined with 50.0 mL of 1.70 M of NaOH(aq) in a coffee-cup calorimeter, the temperature of the solution increases by 10.7°C. What is the change in enthalpy for this balanced reaction?
HCl(aq) + NaOH(aq) ? NaCl(aq) + H₂O( $\ell$ )
Assume that the solution density is 1.00 g/mL and the specific heat capacity of the solution is 4.18 J/g?°C.

• A) -55.8 kJ
• B) 55.8 kJ
• C) 52.5 kJ
• D) -52.5 kJ
• E) -27.1 kJ

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