Problem: A 1.00 L buffer solution is 0.150 M in HC 7H5O2 and 0.250 M in LiC7H5O2. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HC7H5O2 is 6.5 x 10-5.

FREE Expert Solution
97% (493 ratings)
FREE Expert Solution

Buffer - use Henderson-Hasselbach equation
• Must know first what happens when strong acid is added
• ICF chart
• When concentrations and volume is given: use moles

97% (493 ratings)
View Complete Written Solution
Problem Details

A 1.00 L buffer solution is 0.150 M in HC 7H5O2 and 0.250 M in LiC7H5O2. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HC7H5O2 is 6.5 x 10-5.

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 Weak Base Strong Acid Titrations concept. You can view video lessons to learn Weak Base Strong Acid Titrations. Or if you need more Weak Base Strong Acid Titrations practice, you can also practice Weak Base Strong Acid Titrations practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofA 1.00 L buffer solution is 0.150 M in HC 7H5O2 and 0.250 M ...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 8 minutes and 43 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

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