Chemistry

Problem

In the Zn–Cu galvanic cell described in Question 1, a total charge of

1.93\times10^{3}\,\text{C}

passes through the external circuit while the cell operates. Assume the salt bridge contains

KNO_3

and that no volume change occurs in either half-cell. How many moles of

K^+

ions migrate from the salt bridge into the copper half-cell during this time? a)

0.030\,\text{mol}

0.010\,\text{mol}

0.020\,\text{mol}

0.040\,\text{mol}