13. Fundamentals of Electrochemistry

Solve for the missing variable in the following circuit.

Solve for the missing variable in the following circuit.

A metal forms the salt MCl ₃. Electrolysis of the molten salt with a current of 0.700 A for 6.63 h produced 3.00 g of the metal. What is the molar mass of the metal?

Balance the following redox reaction in basic solution.

Cr₂O₇^2– (aq) + SO₃^2– (aq)  →  Cr³⁺ (aq)  +  SO₄^2– (aq)