Today we started off by going over Drake's blog from Wednesday night. We went over some "Do's and Don't's" as we talked about a rubric for the blogs.
** MAKE SURE YOU HAVE YOUR NAME AND UNIT ON THE LABEL **
Next, we went over numbers 2 and 4 from the lab on Wednesday. Be sure to put the element symbol while doing unit conversions.
After that, we took our first Mole Quiz. You have until next Thursday to retake it; however, in order to take it, you MUST go to the TLC and review your Mole Island and get them to email Mr. Tucker saying you went over it with them.
We started a lab called Sandwich Stoiciometry. We went over it with Mr. Tucker.
HW:
- Journal page 7 (Only list if the bonds are Ionic or Covalent. We are going over the formulas Friday in class.)
- TLC (for quiz retakes)
-
Thursday, January 27, 2011
Wednesday, January 26, 2011
W-1/26 Stoichiometry Maleh
The first thing we did today in class was pick up four lab sheets for the mole lab we were going to do later in the period. Next, Mr. Tucker thoroughly explained how to access the chem blog from his moodle and told us what had to be on it to recieve the best grade. After reading through not only his, but Demetria's we began to relearn some of the basic mole concepts we had learned earlier in the week. We first reviewed the helpful chart he handed out to us:
After Mr. T explained in detail how to use the chart we began to work on some of the practice problems we had from Tuesday in class.
After completing three or four problems from the worksheet Mr. Tucker believed we had a descent understanding of the information being given so he sent us back to start working on the lab we received today during class.
If you missed the lab some of the basic information that was given that you need to know is:
26 people in the room
1.49 is the mass of Aluminum foil
Mass of carbon rod is 3.69
Volume of H2O is 24.0
Mass of HCL in dropper bottle is 54.96
Volume of the aluminum bar is .625
Mass of balloon is 16.4
Mass of air in balloon is .14
Overall it was a very beneficial day and a lot of info about Moles were learned.
Hw:
Review Notes
Mole quiz Thursday
Tuesday, January 25, 2011
T-1/25- Stoichiometry Mourikes
1) The first thing we did today was head to the math lab so that we could set up Gmail accounts. Because the computers were not working very well however, many people did not get that to work.
2) Then, using the Gmail accounts, we were able to access the blog that we will be using for the next quarter so that people can continue to stay informed if they are absent from class one day. Mr. Tucker announced that every student will need to complete a blog post ONCE during the quarter, and it will be worth 20 POINTS on our homework grade.
4) We then used that chart to help solve the mole problems on pages 5 and 6, and tried getting as many problems done as possible before class was over.
2) Then, using the Gmail accounts, we were able to access the blog that we will be using for the next quarter so that people can continue to stay informed if they are absent from class one day. Mr. Tucker announced that every student will need to complete a blog post ONCE during the quarter, and it will be worth 20 POINTS on our homework grade.
*IF YOU EVER FORGET THE WEBSITE, GO TO MOODLE AND CLICK ON WHERE IT SAYS PERIOD 2 BLOG, AND IT WILL TAKE YOU STRAIGHT THERE!
3) Next, we picked up pages 5 and 6, which were more practice problems with Moles. It consisted of calculating the number of moles present, along with finding the masses. A very helpful thing to use would be the MOL ISLAND CHART, which we received in class on Monday. It looks just like this...
4) We then used that chart to help solve the mole problems on pages 5 and 6, and tried getting as many problems done as possible before class was over.
SOME PRACTICE PROBLEMS INCLUDE...
HOMEWORK:
- WORK ON PAGES 5 AND 6
- REVIEW CLASS NOTES BECAUSE WE WILL BE DOING A LAB TOMORROW IN CLASS
- MOLES QUIZ #1 THURSDAY!
Monday, January 24, 2011
M-1/24-Stoichiometry
1. We picked up four sheets in class today (Mol Notes- 1page, and Pair,Dozen, Mol Lab Activity- 3pages)
Mr. Tucker mentioned that second semester involves a bit more problem solving and that if we do not stick with the 10-15min a night we might fall behind.....MAKE SURE TO PERFORM NIGHTLY ASSIGNMENTS!!!!
2. We then talked about the mole concept and filled out one page of notes:
* A pair is 2 of something
A dozen is 12 of something
A mole is 6.02 x 1023 of something (this is useful for counting particles/atoms/molecules)
*A mole is then equal to this number above as well as ____g/mol as found on the periodic table
(for instance, 1 mole of Carbon is 12.01g/1mole and 1 mole of Aluminum is 26.98g/1mole)
* the ratios are then 1mol/6.02 x 1023 or 1mol/___g (we can use these as conversion factors)
* We then filled out a mole island conversion chart. This helps to know when to use the conversion factors in mole problems.
3. We then performed the Pair, a Dozen, A Mole Activity
*again, a pair is 3 of something, a dozen is 12 of something, and a mole is 6.02 x 1023 of something
* we did a few calculations together:
2.5moles of donuts x 6.02 x 1023 donuts = 1.505 x 1024 donuts
1mole donuts
* Next, we looked at a big chunk of Aluminum foil. It was 26.98g of it. This means that we also had 1 mole of it (because this is the molar mass found on the periodic table for Aluminum) and also that we had 6.02 x 1023atoms of Aluminum (since 1 mole of something is always 6.02 x 1023 of that thing)
*Finally, we poured 18ml of water in a graduated cylinder (since water has a density of 1g/ml this means that we also had 18g of water in the graduated cylinder). When we looked at the periodic table (H=1g/mole and O=16g/mol, and water has a formula of H2O) we figured out that 1 mole of water will have a mass of 18g/mol. This means that in the graduated cylinder we also had 1mol of water!!!! It really wasn't that exciting, but Mr. Tucker seemed to think so, so hence the exclamation points. Then, since we had 1mole fo water in the graduated cylinder we must also have 6.02 x 1023 water molecules in the cylinder as well!!!
HOMEWORK:
* Meet in the science lab tomorrow
* Transfer the mol island chart from our notes to the small notecard....we should use this when performing mole problems till we get the hang of it
Mr. Tucker mentioned that second semester involves a bit more problem solving and that if we do not stick with the 10-15min a night we might fall behind.....MAKE SURE TO PERFORM NIGHTLY ASSIGNMENTS!!!!
2. We then talked about the mole concept and filled out one page of notes:
* A pair is 2 of something
A dozen is 12 of something
A mole is 6.02 x 1023 of something (this is useful for counting particles/atoms/molecules)
*A mole is then equal to this number above as well as ____g/mol as found on the periodic table
(for instance, 1 mole of Carbon is 12.01g/1mole and 1 mole of Aluminum is 26.98g/1mole)
* the ratios are then 1mol/6.02 x 1023 or 1mol/___g (we can use these as conversion factors)
* We then filled out a mole island conversion chart. This helps to know when to use the conversion factors in mole problems.
3. We then performed the Pair, a Dozen, A Mole Activity
*again, a pair is 3 of something, a dozen is 12 of something, and a mole is 6.02 x 1023 of something
* we did a few calculations together:
2.
1
* Next, we looked at a big chunk of Aluminum foil. It was 26.98g of it. This means that we also had 1 mole of it (because this is the molar mass found on the periodic table for Aluminum) and also that we had 6.02 x 1023atoms of Aluminum (since 1 mole of something is always 6.02 x 1023 of that thing)
*Finally, we poured 18ml of water in a graduated cylinder (since water has a density of 1g/ml this means that we also had 18g of water in the graduated cylinder). When we looked at the periodic table (H=1g/mole and O=16g/mol, and water has a formula of H2O) we figured out that 1 mole of water will have a mass of 18g/mol. This means that in the graduated cylinder we also had 1mol of water!!!! It really wasn't that exciting, but Mr. Tucker seemed to think so, so hence the exclamation points. Then, since we had 1mole fo water in the graduated cylinder we must also have 6.02 x 1023 water molecules in the cylinder as well!!!
HOMEWORK:
* Meet in the science lab tomorrow
* Transfer the mol island chart from our notes to the small notecard....we should use this when performing mole problems till we get the hang of it
Friday, January 21, 2011
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