Conside. uire following data on some weak acids and weak bases: acid base name f

Question

Conside. uire following data on some weak acids and weak bases: acid base name formula name formula |pyridine! -9 hydrofluoric acid HF 6.8 x 10 C,H,N | 1.7×10 -10 hypochlorous acidi HCIO |3.0×10-8| | aniline C6H5NH,43×10 Use this data to rank the following solutions in order of increasing pH. In other words, select a I' next to the solution that will have the lowes a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M CsHGNHBr choose one 0.1 M NaiF choose one " 0.1 M KCI? choose one " choose one v Explanation Check

Explanation / Answer

As the Ka increases,acidity increases,pH decreases

As the Kb of base increases,basicity increases,pH increases

order of pH:

1. C6H5NH3Cl - acidic

2. C5H5NHBr   - acidic

3. NaF     - basic

4. KClO    - basic

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