What is the overall charge of 1.5 x 10^10 electrons?

Answer: Charge = - 2.4x10^-9 Coulombs

Explanation:

The charge of one electron is e = - 1.6x10^-19 C

Then, the charge of 1.5 x 10^10 electrons is equal to 1.5 x 10^10 times the charge of one electron:

Here i will use the relation (a^b) * (a^c) = a^ (b + c)

Charge = (1.5 x 10^10) * (-1.6x10^-19 C) = - 2.4x10^ (10 - 19) C

Charge = - 2.4x10^-9 C