What is the density of an object with a height of 2 and a mass of 300

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?

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.