What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?

http://www.jiskha.com/display.cgi?id=1285115953

DrBob, that i already tried, and i t didn't help me get the right answer (yes, i filled in my own number).

To find the mass of protons required to neutralize the charge of electrons, we need to understand their charges and perform some calculations.

1. Determine the charge of electrons:
- The elementary charge of an electron is approximately -1.6 x 10^-19 Coulombs (C). This is its charge when it is not part of an ion.

2. Calculate the number of electrons in 1.5 grams:
- The molar mass of electrons is approximately 9.1 x 10^-31 kilograms (kg), or 0.00055 grams (g).
- Use the equation: Number of electrons = mass of electrons / molar mass of electrons
- Number of electrons = 1.5 g / 0.00055 g

3. Calculate the total charge of the electrons:
- Use the equation: Total charge = number of electrons × charge of a single electron
- Total charge = number of electrons × (-1.6 x 10^-19 C)

4. Determine the mass of protons required to neutralize the charge:
- The elementary charge of a proton is the same magnitude as an electron, but with a positive sign (+1.6 x 10^-19 C).
- Since the charges of electrons and protons are equal in magnitude, the mass of protons required to neutralize the charge of electrons is equal to the mass of the electrons.

5. Convert the mass of protons to the desired unit (grams):
- The mass of protons is the same as the mass of electrons.
- Therefore, the mass required to neutralize the charge of 1.5 g of electrons is also 1.5 grams.

So, the mass of protons required to neutralize the charge of 1.5 g of electrons is also 1.5 grams.