Problem: What is the pH of a buffer that is 0.120 M in formic acid (HCHO2) and 0.080 M in potassium formate (KCHO2)? For formic acid, Ka = 1.8 x 10–4.

🤓 Based on our data, we think this question is relevant for Professor Allred's class at UA.

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pH = pKa + log(conjugate baseweak acid)pH = -log Ka + log(conjugate baseweak acid)

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Problem Details

What is the pH of a buffer that is 0.120 M in formic acid (HCHO2) and 0.080 M in potassium formate (KCHO2)? For formic acid, Ka = 1.8 x 10–4.

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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 Allred's class at UA.