The Hardest UInit

Well it was hard.... and the test sucked.... I didn't do well... life goes on... **crying**

Preparing for the Acid Base Test

So my friends.... ahead of us is the hardest test of the year. How might one prepare for this you might ask? Well, my inquisitive friend the answer lies in the hours of studying and reading an writing that have been put in already. You do packets over multiple times until you could tell someone both the questions and the answer. You read the book an do every question. You use every source Frank has to help.(It still didn't get me a good grade... I'm not salty at all) Well before I retreat into the depths that is chemistry again, I will wish you all luck on the rest of our semester and all future chem we may have.

Helpful Links

Crash Course

More Crash Course

I Promise Crash Course is Helpful

Khan Academy(This one and the ones after it go with Mrs. Frankenberg's Titration Calculation worksheet that she did not have a key for)

This one leads to a list of acid-base videos that Khan Academy has

Bozeman Science

Molar Mass of an Unknown Acid

This lab is very similar to the Percent acid in vinegar lab, except we were to write our own procedure and given a little bit of a different task. As you can probably guess from the title, we are to find the molar mass of an unknown acid. This means more fancy titrations and for my group, re-standardizing and practically starting all over. Its totally cool though because I enjoy titrations.

We had this fancy way of stirring our water with our unknown acid. It was a small stir rod dropped in the flask, while the flask was sitting on a hot plate. A magnet in the hotplate caused the stir rod to spin which helped us dissolve our solution, along with the heat from the hot plate.

(There was a video, but I don't know how to do cool internet stuff so you can see it... I'm sorry. I hope that the description is enough... or the fact that you also participated in the lab)

Percent Acid In Vinegar

This lab was pretty rockin'. This was our first lab with our new partner, and I was happy with who I was paired with. We work well together and get things done. This lab was about titrating acids and bases in order to find the percent acid in vinegar. We finished this lab with a .85% error, which I cannot complain about. Here are some cool pictures from the lab. We have a titrated solution in between my partner and I in our natural habitat, and a buret filled with base.

Vitamin C Lab

Our first lab leading into the famously difficult acid-base unit was the Vitamin C lab, which I liked a lot. It was all about mixing a fruit juice together with starch. Then you counted the amount of drops of iodine it took to permanently change the color or the initial solvent. The funny thing was when you dropped the iodine in, it seemed to disappear and when it did change color it was wuite rapidly. My partner and I did five trials to recieve the best average we could.

Cool pictures yay!