The total mass of 1 mole of electrons is approximately 5.4858 grams.
To calculate the mass of 1 mole of electrons, you need to use Avogadro’s number, which is approximately 6.022 x 1023. This number represents the number of particles (atoms, molecules, or in this case, electrons) in one mole of a substance.
First, find the mass of one electron, which is given as 9.1 x 10-28 grams. Then, we multiply this mass by Avogadro’s number:
(9.1 x 10-28 g/electron) x (6.022 x 1023 electrons/mole) ≈ 5.4858 grams/mole
So, 1 mole of electrons has a total mass of approximately 5.4858 grams. This calculation is a fundamental concept in chemistry and helps determine the molar mass of elements, which is crucial for various chemical calculations and reactions.