Acids, bases and buffers
3 important questions on Acids, bases and buffers
A solution at 25 degrees celcius has a pH of 5.12. Wat is [OH-]?
- pH + pOH = 14
- 5.12 + pOH = 14
- pOH = 8.88
- pOH = -log[OH-]
- 8.88 = -log[OH-]
- [OH-] = 1.3 x 10^-9 M
H2PO4 can act as an acid, but also as a base. The pKa of this particle is 7.21. What is the pKb of the same particle?
When in a buffer nHA = nA then the pH will be:
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding