How do you find the molar mass of an electron?

The molar mass of an electron is calculated by multiplying the mass of a single electron by Avogadro's number.

Here's a breakdown of the process:

1. Mass of a Single Electron: The mass of a single electron is approximately 9.109 × 10^-31 kg (or 9.109 × 10^-28 g). This value is a fundamental physical constant.

2. Avogadro's Number: Avogadro's number is approximately 6.022 × 10²³ particles/mol. This represents the number of entities (atoms, molecules, ions, electrons, etc.) in one mole of a substance.

3. Calculation: To find the molar mass, multiply the mass of a single electron by Avogadro's number:

   Molar mass of electron = (Mass of one electron) × (Avogadro's number)
   Molar mass of electron = (9.109 × 10^-31 kg/electron) × (6.022 × 10²³ electrons/mol)
   Molar mass of electron ≈ 5.485 × 10^-7 kg/mol
   Molar mass of electron ≈ 5.485 × 10^-4 g/mol

Therefore, the molar mass of an electron is approximately 5.485 × 10^-4 grams per mole. This incredibly small number highlights the extremely low mass of individual electrons.