Find the weight of of electrons in milligrams. (Mass of ) — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

$\text{Mass of 1 mole } e^- = (9.1 \times 10^{-28} \text{ g}) \times (6.022 \times 10^{23}) \approx 0.000548 \text{ g}$. <br>In milligrams: $0.000548 \times 1000 \approx 0.55 \text{ mg}$.