Ok, so Im doing a comparison of acid strenghts and wanted to see if my numbers were correct.
pka of Acids
- Acetic - 4.76
- Citric - 3.09 (only considering 1st proton)
- HCl - -6.3
Calculating I come up:
- Citric acid is about 47x stronger than acetic (pKa = 4.76 - 3.09 = 1.67; 10^1.67 = 46.77)
- HCl is about 1.41x10^11x stronger than acetic (pKa = 4.76 - (-6.3) = 11.06; 10^11.06 = 1.41x10^11 or 141,000,000,000)
The citric comparison looks correct and reasonable, but is HCl correct, it seems ridiculously high but the calculation seems correct.
Thanks