PLEASE help
Collisions: level 16 Playmada app

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

How many grams of phosphorus are contained in 5.09 moles of phosphorus?

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)