# Chemistry

The voltage generated by the zinc concentration cell described by,
Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s)
is 21.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.

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1. I worked this just a few post below but the Ecell was 11 mv. Same process though.
Ecell = Eo - (0059/2)log(0.1/x) and solve for x.

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posted by DrBob222

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