Monday, January 25, 2016

Aqueous Solutions Unit Test

Took the unit test today. I think I did really good. I studied for a very long time and did as many practice problems as possible and I think it all paid off. I read other people's blogs and I don't know how I feel about the grade I achieved but I know I didn't fail so that's always good.
The test took all hour and each question was lengthy. It was a mix of stoichiometry, m1v1=m2v2 problems and a lot of morality problems.
Test

Thursday, January 21, 2016

KMnO4 Lab

*nudge*
We did sooooo much the lab was so enjoyable. I found it to be very educational about our current unit. Although it did reveal my lack of knowledge on the subject. The data we "collected" led us through the process of using molarity in stoichiometry. The calculations were a bit confusing at first but with a little nudge in the right direction I figured things out. I do still have a lot of studying in my future to prepare for the unit test.

Friday, January 8, 2016

Lesson About Aqueous Solutions

Not Bad
The lesson today wasn't bad, I thought it was a little confusing, but I thought majority was pretty easy to understand. The only confusing part I found was the practice problems. I found that she went a little fast for me to track each part. I don't think it will take to much studying to comprehend this part. Although I already have 3 tests Monday and it might be a strenuous weekend. Bottom line the lesson wasn't bad, it will take a little bit of studying to get over things that confuse me, and I will also have to study the small key details such as the "fone call" thing.

Sunday, December 13, 2015

Stoichoimetry Helpful Links

Links
Links:

  1. ChemTeam- Breaks down what stoichoimetry is and gives practice problems with answers
  2. Khan Academy- As always, I have to include Khan Academy. They do agreat job of explaining things
  3. Chem4Kids- Explains stoichoimetry like you are a child
  4. UCDavis ChemWiki- Takes you step by step with a lengthy explanation on each step
  5. Learn Chemistry- Takes you all the way back to the basics of stoichoimetry to the harder aspects of stoichoimetry.
  6. Stoichoimetry- Another view on how to go through problems

Stoichoimetry Week 1 Quiz

: )
I took the quiz. I didn't expect to get the grade I did. I personally thought I bombed it. Quite the opposite actually, I got 100%. When I walked into the test I accepted failure, I thought I was just plugging in numbers and getting random answers. I guess I had the process down and I didn't even know it. I will still continue to study my hardest all the way up to the test, so I'm sure I know what I'm doing. Despite my god grade on the quiz I see alot of practice problems in my future.

Friday, December 11, 2015

Copper (II) Chloride and Iron Lab Day 2

Today we filtered out the fluid leftover. That left the copper. We then proceeded to mix in hydrogen chloride to help clean out the remaining copper. I was surprised to see how much copper was there after 24 hours. We left the copper out to dry until Tuesday when we will weigh the copper. We applied what we have learned all this time in the unit stoichiometry. We calculated the theoretical mass and on Tuesday we will divide the actual by the theoretical to get the percent yield.
Left over copper

Thursday, December 10, 2015

Copper(II) Chloride and Iron Lab Day 1

After placing nail in solution
This lab was a great lab to show chemical reactions and their precipitate. I was fascinated by how fast the copper clung to the nail. We left to wash our hands and came back and the nail was covered by a thick layer of copper. The objective of the lab was to determine the charge of iron. Whether it was Iron 2+ or Iron 3+. In a few days we will be able to determine this based on our percent yield calculations.

Another angle of initial placement