Chemistry Practice Problems Ionic Salts Practice Problems Solution: Which of the following would describe a solution o...

Solution: 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 -5A) AcidicB) BasicC) NeutralD) Can’t Tell

Problem

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

A) Acidic

B) Basic

C) Neutral

D) Can’t Tell

Solution

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.

For cations:

transition metal

▪ charge of +2 or higheracidic
▪ less than +2 → neutral solution

main group metal

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