Question

Calculate charge on 25 g of CARBONATE ion

Answer 1

25 g Carbonate ions .
Molecular weight of CO3^-2 = 60 g/mol

no of mole = given wt/mol. Wt
= 25/60 = 5/12

We know, in 1 mole of Carbonate ions , 2 moles of charge occur .
So, in 5/12 mole of Carbonate ions , 10/12 mole of charge occur .

So, charge = 10/12 × 6.023 × 10²³ × 1.6 × 10^-19 C = 8.03 × 10⁴ C