Mr. Windsor is playing soccer. It takes him 35 seconds to run from the center line to the goal. The distance between the center line and the goal is 50 meters. At what speed is Mr. Windsor running?

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?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Air can be considered a mixture. which statement does not explain why?