Problem: What is the ratio of HCO3- to H2 CO3 in an exhausted marathon runner whose blood pH is 7.2?

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We are asked to find the ratio of HCO3- to H2CO3 in an exhausted marathon runner whose blood pH is 7.2 


Since the solution is a buffer, we can use the Henderson-Hasselbalch Equation to calculate the ratio of

pH = pKa + log conjugate baseweak acid

In the solution, identify the weak acid and the conjugate base. 

Recall from the Bronsted-Lowry definition that an acid is a proton (H+) donor and the base is a proton (H+) acceptor.

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Problem Details

What is the ratio of HCO3- to H2 CO3 in an exhausted marathon runner whose blood pH is 7.2?

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.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Billman's class at Abilene Christian University.