Beginning of the End

We ended this week by finishing up the Copper and Silver Nitrate Lab. That is, most of us did. Some people who accidentally dumped their silver before decanting it had to start the whole lab over again. The rest of us used our decanted and dried silver and weighed it. Now that we were all finished with the lab procedure, we got much time to just work on the post lab.

We also had a quiz, although some people haven't taken it yet, so I don't think that I should post the answers. Sorry! Although if you did take the quiz, Mr. Lieberman was super speedy and graded them all before the bell even rang.

The post lab of the Copper and Silver Nitrate lab is due on Tuesday, which is also the last day of the week! Yay!

For other homework, we have to finish the Intro To Limiting Reactions worksheet. If you lost it or misplaced it, you can find it here. If you finished it, you can also find/check the answers here.

We also have the first set of book problems due on Tuesday. The problem numbers are #61-68 on page 70-71. If you want to get ahead, you can do the second set of problems as well, which are due on Wednesday, December first. They are #70-78 on page 71.

Good luck to you guys, and keep working hard. The week's almost over already, and it isn't even Monday.

The next scribe will be Alex K.

Fe! Fi! Fo! Fum! (And NaCl and SiO2!)

So today, the class began a new lab. In this lab, we had to observe three different mixtures; sand, salt, and iron. Some things we observed were if they were soluble in water, if they were magnetic or not, and other various physical properties. While observing, we made sure to all wear our goggles, because even though things like salt and sand may seem harmless, they still could accidentally get in our eyes and damage them! So, with all the correct safety gear in place, we observed closely, as our brains got to work.

Part A had us mix the sand, salt and iron in about 10mL of water. After doing so, we observed that the salt had dissolved into the water, but the sand and iron filings had not. So, we then used a filter in a funnel to separate the salt water from the sand and filings.

After doing so, we placed the wet filter paper on a hot plate with the wet sand and iron, which was supposed to dry out any excess water left on the sand. That was about the farthest anyone got before it was time to clean up and the bell rang, signaling the end of the class.

When we were dismissed from class, our homework for tonight was to come up with a group procedure for Part B of the lab. The procedure is a way to separate salt, sand, and iron filings. When we come into class tomorrow, we will receive a small tube that has an uneven amount (heterogeneous!) of those three things. I won't talk too much about tomorrow though, because I don't want to steal the next scribe's material.

Which leads me to the next topic that I know we've all been waiting for; tomorrow's scribe!!! Yay! The scribe for tomorrow (technically the weekend) will be none other than Joshua D.!

That'll be all the news from today's Chemistry class. Thanks for reading. You stay classy, Period 6. I'm Aaron G.