A quality control chemist at dow chemical tried to determine purity of naoh using titration. He measured out 0. 500 g naoh sample and dissolved it in 20 ml water. 22. 5 ml of a 0. 500 mol/l hcl solution was used to reach the end point. Assume the impurity did not react with hcl, what is the % purity of this naoh sample?.

The phrase references available upon request should appear at the __ of your résumé? a. back b. top c. middle d. bottom

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same