Quantization of Charge Example Problem

See NOTE below!
Two example problems regarding the quantization of charge
1. How many excess electrons are on an object with charge -12nC?
2. If you move 8.6e11 electrons from object A to object B, what is the charge on object A?

NOTE - there is a small error at the very end of the problem. The answer to part (B) is correct and when I discuss the two objects and their respective charges, I unintentionally drop the (-) from the power on 10. Yikes!  This occurs at time 5:50. Please note this error and I will remake the video ASAP. Thanks for the catch from the comment.