Anybody good in physics? Specifically Electrical Potential?

I’m trying to study for a quiz tomorrow and there are 4 questions from the book that I can’t figure out to save my life.

1. The potential at point P in an electric field is 563 V. (Let’s denote the electric potential energy as UE.)
(a) What is the electrical potential energy of a proton placed at P, in eV and in joules?

(b) What is the electrical potential energy of an electron at P, in eV and in joules?

2. A capacitor has parallel plates that have an area of 0.92 cm2 and are 1.05 mm apart. There is a vacuum between the plates, and the electric field magnitude is 1.05 106 N/C.
(a) Find the potential across the plates. (In V)

(b) Find the charge. (in C)

3. A 0.97 µF capacitor is connected in series with a 1.88 µF capacitor. The 0.97 µF capacitor carries a charge of +10.9 µC on one plate, which is at a potential of 51.0 V.
(a) Find the potential on the negative plate of the 0.97 µF
capacitor. (in V)

(b) Find the equivalent capacitance of the two capacitors. (in F)

4. The plates of a parallel-plate capacitor each have an area of 0.1 m2 and are separated by a 0.6 mm thick layer of rubber. The capacitor is connected to a 14 V battery. (The dielectric constant for rubber is 7.)
(a) Find the capacitance. (in F)

(b) Find the charge stored. (in C)

(c) Find the electric field between the plates. (in V/m)

(if you really can help and would rather help via email, send me a PM)

Thank you!!