Thursday, September 24, 2009

Drink Lab

If you are looking like this guy after the lab, no need to worry, you will work on the questions tonight and tomorrow in class to get this all straight. Also...he def. did not have me for class because if he is measuring, he is doing it all wrong.

Because we did not use flat soda, your density was off by a bit. You should multipy your density by a factor of 1.08 to get the proper density. An example would be experimental density of soda = 0.96g/ml. Multiply that number by 1.08 = 1.0368g/ml. Use that number and the graph you made to find the experimental percent of sugar per ml.

If you need help with the lab work. The new power point is here.
Please do not leave your lab stations a mess when you walk away. Everyone has an equal job in cleaning up. Some students did not think that clean up was an important part of lab today and left their station like this. They will drop 20%from their lab grade. Any furhter blatent infractions will cost members of this group their entire grade.

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