# Problem: Of the following solutions, which has the greatest buffering capacity?a. 0.100 M NH3 and 0.455 M NH4CIb. 0.087 M NH3 and 0.088 M NH4CIc. They are all buffer solutions and would all have the same capacity.d. 0.234 M NH3 and 0.100 M NH4CIe. 0.543 M NH3 and 0.555 M NH4CI

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###### FREE Expert Solution

We’re being asked which of the given solutions will have the greatest buffering capacity.

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:

the ideal buffer is when the amount of conjugate base is equal to the amount of the weak acid.

[conjugate base] = [weak acid]

80% (500 ratings) ###### Problem Details

Of the following solutions, which has the greatest buffering capacity?

a. 0.100 M NH3 and 0.455 M NH4CI

b. 0.087 M NH3 and 0.088 M NH4CI

c. They are all buffer solutions and would all have the same capacity.

d. 0.234 M NH3 and 0.100 M NH4CI

e. 0.543 M NH3 and 0.555 M NH4CI

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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Our tutors rated the difficulty ofOf the following solutions, which has the greatest buffering...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Santra's class at UCF.