Buffer is prepared by mixing the 184 ml of 0.500 L of 0.400 M sodium acetate and 0.442 hydrochloric acid. (Ka=1.8 x 10-5) Determine the balanced reaction that describes the buffer that was formed. Discuss the ph of the buffer system and determine the numbers of grams of KOH must be added to the 0.500L of the buffer to change pH by 0.15 units?