Which of the following would describe a solution of the salt NH 4BrO dissolved in water?
Ka (HBrO) = 2.8 * 10 -9 ; Kb (NH3 ) = 1.76 * 10 -5
D) Can’t Tell
We are being asked if the solution of NH4BrO will be acidic, basic, or neutral. Ionic salts are made up of positively charged ion (cation) and a negatively charged ion (anion). To determine if the ionic salt would be acidic, basic, or neutral, we need to identify the acidity or basicity of the cation and anion.
• transition metal
▪ charge of +2 or higher → acidic
▪ less than +2 → neutral solution
• main group metal