Describe what you expect to happen when the following solutions are electrlized: aqueous Cu(NO3)2. That is,...

Describe what you expect to happen when the following solutions are electrlized: aqueous Cu(NO3)2. That is, what are the electrode reactions? what is the overall reaction? Nitrate ion is not reduced.

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queen_honey_blossom answered 2 years ago

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Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2(aq) and NaBr(aq) are mixed. Pb(NO3)2(aq) + 2 NaBr(aq) → PbBr2(s) + 2 NaNO3(aq) ΔrH° = ? To measure the enthalpy change, 200. mL of 0.75 M Pb(NO3)2(aq) and 200. mL of 1.5 M NaBr(aq) are mixed in a coffee-cup calorimeter. The temperature of the mixture rises by 2.44 °C. Calculate the enthalpy change for the precipitation of PbBr2(s), in kJ/mol. (Assume the density of the solution is 1.0 g/mL, and its specific heat...

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Describe what you expect to happen when the following solutions are electrlized: aqueous Cu(NO3)2. That is,...

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