What is the ph of a buffer made of 2.00 m acetic acid ch3cooh and 2.00 m sodium acetate nach3coo? [hint: use the henderson hasselbalch equation: ph = pka + log [ base / acid ] ka of ch3cooh= 1.8e-5 4.74 5.05 7.98 6.87 question 6 (1 point) )listen what is the molarity of lioh if it is titrated against 50.0 ml of 0.200 m hno3 and the end point was found to be at 40.0 ml lioh? [hint: set up first the balanced neutralization equation between the acid and the base]. a. 0.187 m b. 0.250 m c. 0.215 m