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AP Chemistry
9.8 Galvanic (Voltaic) and Electrolytic Cells
IntermediateMCQConceptualExperimental18k
Galvanic cell apparatus consisting of $\text{Zn(s)}\mid\text{Zn}^{2+}\text{(aq)}$ and $\text{Cu(s)}\mid\text{Cu}^{2+}\text{(aq)}$ half-cells.
Galvanic cell apparatus consisting of $\text{Zn(s)}\mid\text{Zn}^{2+}\text{(aq)}$ and $\text{Cu(s)}\mid\text{Cu}^{2+}\text{(aq)}$ half-cells.
A student constructs the galvanic cell shown in the diagram, consisting of a $\text{Zn(s)}$ electrode immersed in $1.0\text{ M }\text{Zn(NO}_3)_2\text{(aq)}$ and a $\text{Cu(s)}$ electrode immersed in $1.0\text{ M }\text{Cu(NO}_3)_2\text{(aq)}$. A salt bridge filled with $\text{KNO}_3\text{(aq)}$ connects the two solutions, and the initial cell potential is measured as $+1.10\text{ V}$. During the trial, the student lifts the salt bridge completely out of the solutions. Which of the following best predicts and explains the effect of removing the salt bridge on the measured cell potential?

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