Question

In: Chemistry

Decide which of the following combinations will result in a buffering solution, and which will not...

Decide which of the following combinations will result in a buffering solution, and which will not when equal volumes of each are mixed.

1.65 M HIO + 0.825 M SrO

1.33 M HClO4 + 0.665 M C2H5NH2

1.27 M HNO2 + 0.635 M NH3

1.91 M HCl + 0.955 M NaOH

1.69 M HIO + 0.845 M CsOH

Solutions

Expert Solution

A buffer solution will always contain a weak acid and its conjugate base (or a weak base and its conjugate acid) in similar quantities. The two components can be combined directly or one can be generated from the other with the addition of a strong acid or base.

1) Yes, HIO is a weak acid and SrO is a weak base

2) NO, HClO4 is a strong acid

3) Yes, HNO2 is a weak acid and NH3 is a weak base

4) NO, strong acid and strong base

5) NO, CsOH is a strong base


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