Before class on Thursday, Jan. 5

Before class on Thursday, Jan. 5,

Please watch the 3 videos below (21 min, 13 min, 21 min). A note packet was handed out in class.
Please make a comment.

1st Video

https://www.youtube.com/watch?v=LUfjqnbfjDc

2nd Video

https://www.youtube.com/watch?v=GEeLtDf3f5c

3rd Video: Rates of Reactions and Rate Laws

https://www.youtube.com/watch?v=RkJIdcqpiFw

Gas Packet (Pages and Extra Practice Problems)

I am posting photos I took of the gas packet, in case you are missing yours. I will also post answers to the problems later this weekend, as well as extra gas practice problems later this weekend

page-1 page-187 page-188 page-189 page-191 page-192 page-193 page-194 page-195 page-196 page-197 page-198 page-199 page-200 page-201 page-202 page-203

Before class on Tues., Jan 3

Before class on Tuesday, Jan. 3:

Please watch the 8 videos below (in total 90 min). These videos follow the notes I handed out in class;
Complete the multiple choice and free response questions in the gas packet I handed out to you.

If you have questions on this material, please email me at suzanne.irwin@lcps.org or send me a remind text. We will be practicing gas problems and discussiong how the structure of molecules affects the properties of solids, liquids, solutions and gases on our first day back. We will start our next unit, on Kinetics, on Jan. 5 . You will have a unit test/quiz on Solids, Liquids, Solutions, Gases and their properties on Monday, Jan. 9.

Gas Laws Part 2: Pressure and Volume

Gas Laws: Charles, Combined, Avogadro’s

How to use ideal gas law with density problem (this is the 4th video, even though is says Gases part 5):

How to use ideal gas law to find the molar mass of a gas:

Using the ideal gas law with stoichiometry problems to find out how much of something you have:

Partial Pressures and Effusion and Diffusion

How real gases differ from “ideal gases”

Before Class Tues. Dec. 20

Before class on Tuesday, Dec. 20, please watch the 15 min video below.

Before Class Wed. Dec. 14

Before class on Wednesday, Dec. 14,

please watch the 3 videos below (14 min, 7 min., 1 more to come)
and take notes (note packet was handed out in class on Friday. Titled: State of Matter and Phase Changes).
and make a comment.

Before Class Tuesday, Dec. 6

Before class on Tuesday:

Please watch the following 2 videos. (17 min, 18 min). Follow along with the notes I gave you in class. I will finish the last page of the notes in class
Make a comment below.
If you missed class on Friday for the field trip, I will included videos on geometry that cover what we discussed in class.

sdf

Review for Unit 3 Test

Our Unit 3 Test will be on how we find out how much of a substance we have: using moles, or percent composition. It will also include questions on ionic bonding and naming and writing formulas for ionic compounds. Here is the blank study guide. I recommend that you complete the study guide and make sure you know how to do the problems for each learning target. I will post the answers on Sunday, Dec. 4.

Unit 3 Study Guide without answers

Before Class on Nov. 30: Lewis Structures

Before class on Nov. 30:

Watch the 3 videos below(14 min, and 14 min and 12 min );
Make a comment.

Before Class on November 28: Lattice Energy, Bonding, and Electronegativity

Before class on Nov. 28, please watch the following videos. I did not make these videos, but I think the instructor uses computer animation and analogies in a way that is very helpful. There are 6 videos, and each video is 4 minutes or less, so you have in total between 22 and 24 minutes of videos.

These videos define lattice energy as the energy required to break apart an ionic formula into separate, infinitely spaced gaseous ions. WE are defining lattice energy in the OPPOSITE way– as the energy released when two gaseous ions come together. So our lattice energies will be exothermic, or negative. However, everything else about thee videos applies.

Also, here is the answer key for the