What is the Ecell when [Co2+] = 0.45 M? Hint: If [Co2+] increased, then [Ni2+] must have decrease by a stoichiometric amount. What is the [Ni2+] when = 0.025 V? Solve for the ratio to determine “Q” the change in You’ll get the concentration subtracting from the initial “x.” “x” concentration. What are the equilibrium concentrations of the ions? In this case, Ecell = 0, so use the right equation. Solve the ratio to determine the change in You’ll get “K” “x.” the concentrations by adding and subtracting from the initial concentrations. “x”
What is the Ecell when [Co2+] = 0.45 M? Hint: If [Co2+] increased, then [Ni2+] must have decrease by a stoichiometric amount. What is the [Ni2+] when = 0.025 V? Solve for the “Q” ratio to determine the change in “x.” You’ll get the concentration subtracting “x” from the initial concentration. What are the equilibrium concentrations of the ions? In this case, Ecell = 0, so use the right equation. Solve the “K” ratio to determine the change in “x.” You’ll get the concentrations by adding and subtracting “x” from the initial concentrations.
Electrochemistry%20HW%20II.docx