Calculation of the pH ofaSolution of a Polyprotic Acid
Histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown below (His = imidazole group). A biochemist makes up 100mL of a 0.100M solution of histidine at a pH of 5.40. She then adds 40mL of 0.10M HCl. What is the pH of the resulting solution?
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 Calculating pH concept. If you need more Calculating pH practice, you can also practice Calculating pH practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Yeargain's class at UCF.