Question:

20 mL 5M NaNO2 solution is mixed with 100mL 2M HNO2 solution

Last updated: 7/4/2023

20 mL 5M NaNO2 solution is mixed with 100mL 2M HNO2 solution

20 mL 5M NaNO2 solution is mixed with 100mL 2M HNO2 solution to prepare a buffer solution of pH 5 7 The K of HNO2 is 10 6 10 5 4 x 10 6 4 x 10 5 Marks 4 1