A voltaic cell designed to measure [Cu2+] is constructed of a standard hydrogen

Question

A voltaic cell designed to measure [Cu2+] is constructed of a standard hydrogen electrode and a copper metal electrode in the Cu2+ solution of interest. A.If you wanted to construct a calibration curve for how the cell potential varies with the concentration of copper(II), what would you plot in order to obtain a straight line?

a.) [Cu2+] versus Ecell

b.) exp[Cu2+] versus Ecell

c.) log[Cu2+] versus Ecell

d.) [Cu2+]2 versus Ecell

B.)What would be the slope of the line? Express your answer using two significant figures.

Explanation / Answer

E= Eo-0.0591/n logQ

the plot needs to be E0 vs log [Cu+2] ( c is correct)

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