Recording for 4/28 Chemistry Class - Energy of Reactions

http://youtu.be/gB76bzXUdas

4/28 Chemistry class update and homework due 5/5

Hi folks,

Today we spent some time getting familiar with how energy works within reactions. We will spend a bit more time with this next week as well.

Homework for this week is to:

Read pages 279 - 293 in the text

Do Questions 17 - 33 on page 302

Finally, Take a look at today's lab. Categorize the reactions we did as either exothermic or endothermic.

Extra Credit possibility

Hi folks,

This is a great and fun way to get a handle on stoichiometry and limiting reagents.  Spend some time with this site.  I highly recommend starting with the sandwiches part, then moving to the molecules part.  After that, try your hand at the game.  10 point of extra credit if you send me screen shots of your scores after doing each level of the game.  Three screen shots in all, one for each of the three levels.  You need to score at least a 4 out of 5 stars for it to count.

Have fun and good luck!

Lab page for homework

Sorry, forgot to include this in the last email.

4/21 Chemistry update and homework due 4/28

Hi folks,

Today we took a bit of a look at electrochemistry. We did a small lab with it last week and today we discussed what electrochemistry is.

We also spent time performing a titration lab which is a very important skill in chemistry used to find the proportions of compounds in a substance.

Homework for next week is to finish the calculations in today's lab (see photo of page included below).

Also:
Read the text book pages 337 to 357 and
Answer 1-11 Key Terms and Matching Definitions page 358
Answer 1 - 5 Review Questions page 358
Answer 9 - 18 Review Questions page 358

10 points extra credit for doing the experiment on page 341. Take pictures or a video to document your work.

A good video explaining redox reactions

If you are feeling you may want another look at redox reactions, this video does a nice job explaining what we've covered in class.

https://www.youtube.com/watch?v=RX6rh-eeflM

Jim Mueller

Recording for 4/21 Chemistry Class - Electrochemistry

http://youtu.be/kAFVGWSzY54

Here's the link to the video we watched in class. https://www.youtube.com/watch?v=Rt7-VrmZuds

4/14 Chemistry update and homework due 4/21

Hi folks,

Today we did two activities in class. For one, we slightly electroplated a coin using a penny, and for the other we examined the pH's of many common household chemicals. We will talk a bit more next week about the concepts behind both of today's experiments.

For homework this week:

Read pgs 307 - 331 in the Conceptual Chemistry book
Do Review Questions on pgs 332 and 333 #'s 1 - 17

Recording of 4/7 Chemistry Class - Redox reactions

https://youtu.be/MjvnCfgMwig

4/7 Chemistry update and homework due 4/14

Hi folks,

So, today we got deeper into redox reactions and explored the fascinating world of half reactions as we tried to find out where the electrons went in the reaction.

Homework for this week is to do the enclosed worksheet.