chemistry

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E degrees (V)
A galvanic cell based on the following half reaction s Au3+ 3e- ----> Au 1.50
Mg2+ 2e- ------> Mg -2.37

The cell is set up at 25 C with [Mg2+] = 1.00 x 10^-5 M
The cell potential is observed to be 4.01 V. Calculate the [Au3+] that must be present.

Au3+ = ____________M

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