Question

How to calculate
Charge require to reduce 1mole of Cr2O72-ions to Cr+3 is

Answer 1

Answer:

you could always try this - If you ever needed to use it in an exam, you would be given the value. 1 mole of electrons contains the Avogadro constant, L, electrons - that is 6.02 x 1023 electrons. You would also be given that in an exam if you needed to use it. This value is known as the Faraday constant