A chemistry graduate student is given 250 mL of a 0 90M

Last updated: 4/29/2023

A chemistry graduate student is given 250 mL of a 0 90M nitrous acid HNO solution Nitrous acid is a weak acid with K 4 5 x 104 What mass of KNO should the student dissolve in the HNO solution to turn it into a buffer with pH 2 95 C You may assume that the volume of the solution doesn t change when the KNO is dissolved in it Be sure your answer has a unit symbol and round it to 2 significant digits 11 0x10