Write a chemical equation that describes the equilibrium you observe! Discuss how addition of different chemicals will affect the initial equilibrium and how this is related to the color changes you observed!

1- Writing Assignment (2pts)

Due In Recitation 2/23 or 2/24

Top: Observations

Chemical addedColor of solution

Include more observations than just this chart!

Bottom: Conclusions

Write a chemical equation that describes the equilibrium you observe! Discuss how addition of different chemicals will affect the initial equilibrium and how this is related to the color changes you observed!

2- Name: ____________________

Writing Assignment

Top: Observations

Chemical addedpH of solution

Bottom: Conclusions

Write a chemical equation for the dissociation of the salt that was added to the solution! Then describe qualitatively what the effect of each ion on the pH of the solution is. Write the acid-base equilibrium equation for any ions that will affect the pH of the solution!

3- Name: ________________________

Writing Assignment

Top: Observations (below name and rec. section #!)

Write down your observations of what happens during the experiment! Note color changes and anything else that happens (observe carefully!)

#1/ Use words, phrases, or sentences.

#2/ Make sure they are legible and in some sort of order.

Bottom: Conclusions

Write chemical equations that explain your observations! Identify any Lewis acids and bases in the equations.

4- Video pH of salts (Ch 15) Extra Credit Assignment

5- Video of Lewis Acid/Base demo (Ch 15)

6- Extra Credit Assignment

Read the following article:

“Making batteries fire-resistant with solid electrolytes”

Write or type a 1 page summary (double spaced) in your own words about this article for  2 participation points (same as clicker/SI points). You can turn this in anytime before our last lecture class.

Click on “extra credit assignment” above to open the article.

https://cen.acs.org/articles/94/i45/Making-batteries-fire-resistant-solid.html?utm_source=Newsletter&utm_medium=Newsletter&utm_campaign=CEN

6- Extra Credit Assignment

Read the following article:

“Making batteries fire-resistant with solid electrolytes”

Write or type a 1 page summary (double spaced) in your own words about this article for  2 participation points (same as clicker/SI points). You can turn this in anytime before our last lecture class.

Click on “extra credit assignment” above to open the article.