Problem: A 1.0 L buffer solution is 0.12 M in HNO2 and 0.060 M in KNO2. Which action destroys the buffer?a. adding 0.060 mol of KNO2b. adding 0.060 mol of KOHc. adding 0.060 mol of HNO3d. none of the above

FREE Expert Solution

The maximum buffering capacity of a solution is when the pH of the solution is equal to pKa and the buffer range of a solution is pH = pKa ± 1

 maximum buffering capacity:              pH = pKa
 buffering range:              pH = pKa ± 1


Recall the Henderson-Hasselbalch equation:

pH=pKa+logconjugate baseweak acid


98% (482 ratings)
View Complete Written Solution
Problem Details

A 1.0 L buffer solution is 0.12 M in HNO2 and 0.060 M in KNO2. Which action destroys the buffer?
a. adding 0.060 mol of KNO2
b. adding 0.060 mol of KOH
c. adding 0.060 mol of HNO3
d. none of the above

Frequently Asked Questions

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.