Using micropipettes for delivery of small volumes pg 5-8

1. if you need to pipette x µl, which micropipette/pipetman would you use?

2. how do you use a micropipette?

3. if you pipette xµl onto a tared weigh boat, what weight should you get in grams? and why?

4. being able to read what micropipettes are set to (pg 6)

5. when would you use a pipet-aid vs a pipetman

6. when should you switch your tip?

7. how do you use the analytical balance?

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.