Question

1. Calculate the pH of the cathode compartment solution if the cell emf at 298 K is measured to be 0.610 V when [Zn2+]= 0.20 M and PH2= 0.92 atm .

Express your answer using two decimal places.

pH=

Switch 8.76 Voltmeter 7n anode NO, Na +H (8) Cathode compartment (standard hydrogen electrode) Anode compartment NO, Zn2+ NO

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Answer #1

Overall cell reaction taking place is In(s) of 24+ anet & Harg) number of electron enchanged - 2 o= reaction auotient = [n2+]

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