Excess Electricial Charge Fraction

[perfection256]

Homework Statement

Homework Equations

No clue, honestly I'm trying to figure out what formula i need to use to start this problem.

The Attempt at a Solution

No clue, honestly I'm trying to figure out what formula i need to use to start this problem.

 

[Carid]

It looks like you need to start by calculating just how many molecules are present on the face of the piece of tape.