Problem: Which of the following gives a buffer solution when equal volumes of the two solutions are mixed?(a) 0.10 M HF and 0.10 M NaOH(b) 0.20 M HF and 0.10 M NaOH(c) 0.10 M HCl and 0.20 M NaF(d) 0.10 M HF and 0.10 M NaF

FREE Expert Solution

We’re being asked to determine which of the given solutions is a good buffer system.


Recall that a buffer can be composed of the following:

weak base and its conjugate acid
weak acid and its conjugate base
weak acid and a strong base 

▪ concentration of weak acid > concentration of strong base

weak base and a strong acid 

concentration of weak base > concentration of strong acid


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Problem Details

Which of the following gives a buffer solution when equal volumes of the two solutions are mixed?

(a) 0.10 M HF and 0.10 M NaOH

(b) 0.20 M HF and 0.10 M NaOH

(c) 0.10 M HCl and 0.20 M NaF

(d) 0.10 M HF and 0.10 M NaF

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Buffer concept. You can view video lessons to learn Buffer Or if you need more Buffer practice, you can also practice Buffer practice problems .

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