When 500 ML of 0

question 115

Multiple Choice

When 50.0 mL of 0.400 mol L^-1 Ca(NO₃) ₂ is added to 50.0 mL of 0.800 mol L^-1 NaF, CaF₂ precipitates, as shown in the net ionic equation below. The initial temperature of both solutions is 23.0 °C. Assuming that the reaction goes to completion, and that the resulting solution has a mass of 100.00 g and a specific heat of 4.18 J g^-1°C^-1, calculate the final temperature of the solution. Ca²⁺(aq) + 2F^-(aq) → CaF₂(s) H = -11.5 kJ

• A)22.45 °C
• B)23.55 °C
• C)24.10 °C
• D)24.65 °C

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