1.500ml Buffer solution is 0.250 M in HNO2 as well as 0.200 M in KNO2. The Ka for HNO2 is 4.6x10-4. Explain what is the initial pH of this buffer?
2. Explain what is the pH of the buffer 1 if 0.0059 moles of HCl are added presuming no change in volume