Question

When one mole of sodium chloride dissociates in water, it produces: 1 mole of ions ½ mole of sodium ions 2 moles of ions ½ mole of chloride ions none of these

Answer 1

Answer: The correct answer is 2 moles of ions. I got this question right on an assignment.

Answer 2

Dissociation of NaCl in water is given as below,

NaCl ₍s₎ → Na⁺ ₍aq₎ + Cl⁻ ₍aq₎

According to this balanced equation the moles on RHS and LHS are as,

Moles on LHS,
NaCl ₍s₎ = 1 Mole

Moles on RHS,
Na⁺ ₍aq₎ = 1 Mole

Cl⁻ ₍aq₎ = 1 Mole
Result:
When one mole of sodium chloride dissociates in water, it produces 2 Moles of Ions.