1) Determine the equilibrium constant, Keq, at 25°C for the reaction
2Br– (aq) + I2(s) ⇌ Br2(l) + 2I– (aq)
My wrong answer: 7.6e-10
2) Aluminum metal is formed by the electrolysis of Al2O3 in molten cryolite. How many minutes are required to form 15.6 g of Al using a current of 9 A?
My wrong answer: 620.
I NEED HELP ANSWERING THESE TWO QUESTIONS STEP BY STEP.