1.Using Nerst, find the E of the cell for the dicromate redox system:

A.under standard conditions.

B.under neutral solutions instead of acid solutions.

2.Use Nerst and the hydrogen half equation to obtain an expression for pH.

I don't understand what you don't understand about this.

A. Look it up in the redox tables.
B. Is this standard conditions also.

2. Can you write the two half equations.