Question

Find number of electron in 5.4 gm of ammonia ion

Answer 1

This means that Ammonium Ion is formed by losing one electron. No. of Protons is equal to Atomic number of N + 4 times atomic number of Hydrogen. SInce 1 mole contains NA [Avogadro's number] number of ions of NH4, 1 mole of NH4 will contain NA*10 electrons.