Question: When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode.

When an aqueous solution containing gold (III) salt is electrolyzed, metallic

When an aqueous solution containing gold (III) salt is electrolyzed, metallic gold is deposited at the cathode, and oxygen gas is generated at the anode. (a) If 5.69g of Au is deposited at the cathode, calculate the volume of O2 generated at 23C and 736 mmHg. L (b) What is the current used if the electrolytic process took 6.45h ? A A galvanic cell using Mg/Mg2+ and Cu/Cu2+ half-cells operates under standard-state conditions at 25 C, and each compartment has a volume of 223mL. The cell delivers 0.30A for 31.1h. (a) How many grams of Cu are deposited? g Cu (b) What is the [Cu2+] remaining? M

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