Week+of+Nov.+26+Log+Book

-Nov. 26- Today I was in the lab with Mr. M. Over the weekend I got a sample of about a gallon of some tap water from my home. I brought it in and we labeled it and found the necessary beakers and hot plate and got everything labeled and ready to go for the next day.

-Nov. 27.- Today Mr. M and I went back to the lab. I filled a 500mL beaker with 500mLs of my sample. We put the beaker with sample on a hot plate and set it on setting 2.We then let it to boil down. We put it on setting 2 so that the sample would evaporate without boiling and splattering out in which case we would lose some of our sample.

-Nov. 28- Today I found out that Mr. M turned off the hot plate at around 4:00 when he left to go home. He did this because he realized that the sample would fully evaporate during the night and it would also not be safe to leave the hot plate on at night. I went to check on it in the morning and found it off so I turned it back on. When we went back up 10th period it was fully evaporated with a chalky white remnant at the bottom. This was a good sign because it left a very good sample that could easily be analyzed by the PIXE machine.

-Nov. 29- Today I came in early to put another 500mL sample on at about 7:45 in the morning. We wanted to do this so that by tenth period we could transfer the rest of the water into a 50mL beaker. When we came up to the lab 10th period we found the sample to be at about 55mL which was perfect. We transfered the sample to a 50mL beaker but did not put it on the hot plate. We are going to put it on tomorrow morning so that we would not have to turn it off tonight.

-Nov. 30- Today I came in early to turn on the hot plate and evaporate the rest of the sample so that it leaves the chalky white remnant that it left previously. When Mr. M and I went back to the lab the remnant was there. I took the sample and scraped it into a specimen bottle.