Question

Determine the number of moles present in 0.55mg of electrins

Answer 1

Answer:

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Explanation:

Mass of one electron = 9.1 * 10^-31 kg

Total number of electrons in 0.55 * 10^-6 kg = 0.55 * 10^-6 / (9.1 * 10^-31) = 6 * 10^23 electrons

1 mol of electrons = 6 * 10^23 electrons.

Therefore no. of moles of electrons present in 0.55mg of electrons is nearly 1.