Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2 and NaBr are mixed. Pb(NO3)2(aq) + 2 NaBr(aq) ----------> PbBr2(s) + 2 NaNO3(aq) 200.0 mL of 0.750 M Pb(NO3)2 and 200.0 mL of 1.50 M NaBr are mixed together in a coffee cup calorimeter. The temperature of the mixture rises by 2.44°C. Calculate whether a limiting reactant is present or if perfect amounts of both reactants are present. Calculate the enthalpy change for this precipitation reaction. (assume the density of all solutions is 1.00 g/mL). (Answer in kJ)

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.