Sunday, November 30, 2008

turnitin.com

HL ID: 2435304
SL 1 ID: 2435297
SL 2 ID: 2435302

Password: molecule

Monday, October 27, 2008

Midterm Review

Please post your top 3 topics you would like to go over. Don't worry about repeating topics others have posted. This simply gives me an idea of the topics the majority of the class needs assistance with. Also, I have posted 5 sets of worksheets on the www.schoolandteacher.com under projects (Fall Midterm). Please print these out and bring them to class tomorrow. All of the multiple choice midterm questions will come from these worksheets. Post any questions on the blog.

Thursday, October 16, 2008

IMPORTANT LAB INFO

For your introduction you may leave your equations unbalanced and you can assume the mole ratio of al to the alum is 1 to 1.
Post all questions on the blog.

Monday, September 29, 2008

Projects online

Your projects are now posted on the website. Any projects received from now on will be counted as late.

Sunday, September 28, 2008

Where to find study sheets

Email me your study sheets using anniemarostica@hotmail.com This will allow larger files than my school email. I will then post all study sheets under projects. SL will have separate projects for each period: Study Sheets P.1 and Study Sheets P.2. Make sure you click on the correct project! Remember, the projects must be emailed by 6:30pm MONDAY night.

Friday, September 26, 2008

IB Jigsaw Project

Schedule:
Friday
"Expert" groups were arranged and assigned one of the following topics:
1-Naming
2-Empirical/molecular formula and limiting reagents
3-Bohr's Model and equations with frequency, energy, wavelength, speed, and Planck's constant (h)
4-electron configuration, isoelectronic ions/atoms, periodic trends (size, electronegativity, ionization energy, SHIELDING)
5-Lewis Dot Structures (ionic, covalent, resonance)
6-Valence Shell Electron Pair Repulsion Model (VSEPR)
7-Polarity

Groups got together and brainstormed about how to organize their study sheet. *Remember* The best study sheets are concise and well organized. The use of graphic organizers is highly encouraged. This should be a resource for all students to use at a glance. The front of one page is ideal and it should NOT EXCEED one page front and back.
The guide MUST CONTAIN 3 examples and 3 problems for the other students to practice.

Monday
Create your study guide in class. Type up the guide and submit over email to Ms. Marostica (can't post documents on blog :( ). This is due NO LATER THAN 6:30 Monday night. Ms. Marostica will try to post these sheets on the website monday night but may not be able to as she will be out of the state. SO, it will be required that every expert group member have a copy of his/her own groups study sheet. For example, on Tuesday, every member of group 1 should come to school with a printed version of the study sheet. Make sure you exchange emails so you can send everyone a copy.

Tuesday
One member of each group will get together with each other. This means we will have several groups of 7 people. Each person will get 7 minutes to explain his/her topic. During this time, at least one problem should be attempted by the group with the help of the expert to guide them through the process of solving the problem. Ms. Marostica will post all study guides Tuesday night so you can review them for the quiz. The quiz will directly focus on topics 5-7 but you will need information from all topics to be successful as the material builds on eachother.

Saturday, September 6, 2008

Magnesium oxide lab

Hi chemistry studs!

Per. 1, we will be re-doing the lab on monday, instructions to follow in class on monday. For now, you should be reviewing and working limiting reagent problems. Please be ready to begin lab ASAP because I am going to try to do something else that day as well.

Per. 2 and 5, if you did not get a positive mass for grams of oxygen, please use the following data to calculate the mole ratio of Mg:O.
Mass of equipment (no Mg) = 29.809
Mass of equipment + Mg = 29.935
Mass of equipment + magnesium oxide = 29.990

These are not necessary correct results, they are simply sample data from another student's lab. The correct empirical formula is MgO (ionic bonding rules: O is -2 and Mg is +2 so they go together in a 1:1 ratio).
Use this data if you didn't get data that makes sense i.e. the magnesium oxide weighed less than the magnesium.
We will have a post lab on monday and start on chapter 7.

Hope your weekend is going well,
Ms. Marostica