Cell Potential Under Nonstandard Conditions

AP Chemistry· difficulty 4/5

For the Daniell cell (EE^\circ = 1.10 V) at 298 K with [Zn2+][Zn^{2+}] = 1.0 M and [Cu2+][Cu^{2+}] = 0.0010 M, calculate EcellE_{cell}.

  • A

    Ecell1.10E_{cell} \approx 1.10 V

  • B

    Ecell0.92E_{cell} \approx 0.92 V

  • C

    Ecell1.19E_{cell} \approx 1.19 V

  • D

    Ecell1.01E_{cell} \approx 1.01 V

    check_circle

Explanation

EE = E(0.0592/n)logQE^\circ - (0.0592/n)\log Q. n = 2; Q = [Zn2+]/[Cu2+][Zn^{2+}]/[Cu^{2+}] = 1000. EE = 1.10 - (0.0296)(3) = 1.10 - 0.0888 = 1.01 V.

Want 10 more like this — adaptive to your weak spots?

Related questions