Question

What is the hydroxide ion concentration of an aqueous solution of 0.35 M NaOH?

Answer 1

Solution: sodium hydroxide dissociates in water into sodium ion and hydroxyl ion. NaOH=Na⁺+HO^_.

Then, if 0.35 mol of sodium hydroxide dissociates, then the hydroxide ion will be 0.35 mol. If we write this concentration per 1 liter, then it will be a concentration of 0.35 mol / L.

Answer: 0.35 mol/L