Calculate the net charge on a substance consisting of a combination of 6.0 1013 protons and 2.0 1013 electrons.
add the charges, in coulombs.
To calculate the net charge on a substance, you need to find the difference between the total number of protons and the total number of electrons. Here's how you can calculate it:
1. Determine the total charge of protons: The charge of one proton is +1.6 x 10^-19 coulombs. Multiply this charge by the number of protons you have: 6.0 x 10^13 protons * 1.6 x 10^-19 C/proton.
Calculating this, we get:
Total charge of protons = 6.0 x 10^13 protons * 1.6 x 10^-19 C/proton.
2. Determine the total charge of electrons: The charge of one electron is -1.6 x 10^-19 coulombs. Multiply this charge by the number of electrons you have: 2.0 x 10^13 electrons * -1.6 x 10^-19 C/electron.
Calculating this, we get:
Total charge of electrons = 2.0 x 10^13 electrons * -1.6 x 10^-19 C/electron.
3. Calculate the net charge by finding the difference between the total charge of protons and the total charge of electrons:
Net charge = Total charge of protons - Total charge of electrons.
Now, let's calculate the net charge:
Total charge of protons = 6.0 x 10^13 protons * 1.6 x 10^-19 C/proton = 9.6 x 10^-6 C.
Total charge of electrons = 2.0 x 10^13 electrons * -1.6 x 10^-19 C/electron = -3.2 x 10^-6 C.
Net charge = 9.6 x 10^-6 C - (-3.2 x 10^-6 C) = 12.8 x 10^-6 C = 1.28 x 10^-5 C.
Therefore, the net charge on the substance is 1.28 x 10^-5 coulombs.