Determine pKa from Ka
8. Buffer and Isotonic Solution 8.1) Buffer 8.1.1) Determine pKa from Ka
8.1.1.1) Determine pKa from Ka Easy 1
Total tried: Correct: Wrong:
The dissociation constant (Ka value) of formic acid is 1.76 × 10−4. Determine the pKa of it.
Click on the button below to see the answer and explanations
lb equals 3.75 kg
-
Answer: 3.75 is the pKa of formic acid.
- The negative logarithm of Ka would give us the pKa value.
- The Ka provided in the question is 1.76 × 10−4
- Taking negative log of this number we get, —log( 1.76 × 10−4) or — (— 3.75) or 3.75
- Hence, the pKa is 3.75