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).
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).
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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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).
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