Calculating Charged Particles Transferred -15nC to -10nC

[Foxhound101]

Homework Statement

A plastic rod that has been charged to -15.0 nC touches a metal sphere. Afterward, the rod's charge is -10nC.

Part C -
How many charged particles were transferred?

Homework Equations

Don't know any
e=1.6 * 10^-19

The Attempt at a Solution

This chapter greatly confuses me...This should be really simple and I am just being stupid...

There is a difference of 5nC between the original charge and the current charge. However, besides knowing that I do not know what to do. There are no equations in this part of the chapter.

 

[rock.freak667]

There is a difference of 5nC between the original charge and the current charge.

Yes this is correct.

Now if 1 electron has a charge of 1.6 * 10^-19C. How many electrons would it take to make a chare of 5nC?

i.e. If N is the number of electrons, and e is the charge of an electron. What N is such that Ne=5*10^-9?

 

[Foxhound101]

That was very helpful rock.freak.