Calculate the net charge on a substance con-
sisting of a combination of 3.5 × 1013 protons
and 6.3 × 1013 electrons.
Answer in units of C.
total charge= -numberprotons*e+numbereectrons*(e)
e is the charge on an electron.
To calculate the net charge on a substance, we need to determine the difference between the total positive charge (protons) and the total negative charge (electrons).
The charge of an electron is -1.6 × 10^-19 C, and the charge of a proton is +1.6 × 10^-19 C.
Given that there are 3.5 × 10^13 protons and 6.3 × 10^13 electrons, we can calculate the net charge as follows:
Net charge = (number of protons × charge of a proton) + (number of electrons × charge of an electron)
Net charge = (3.5 × 10^13) × (1.6 × 10^-19 C) + (6.3 × 10^13) × (-1.6 × 10^-19 C)
Calculating the net charge:
Net charge = (3.5 × 1.6) × (10^13 × 10^-19) + (-6.3 × 1.6) × (10^13 × 10^-19)
Net charge = 5.6 × (10^13 × 10^-19) - 10.08 × (10^13 × 10^-19)
Net charge ≈ 5.6 × 10^-6 C - 10.08 × 10^-6 C
Net charge ≈ -4.48 × 10^-6 C
Therefore, the net charge on the substance is approximately -4.48 × 10^-6 C.