In: Chemistry
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
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