The identification of the melting point of the organic acid was done to find another characteristic of the acid and to test the purity of the recrystallized pure acid. A 2-4 mm layer of unknown sample was placed into a capillary tube sealed on one end. Then the capillary tube was inserted into the side a Bibby Sterlin device. The plateau was set to 200°C on the melting point apparatus. Once the plateau temperature was reached, the sample was watched carefully. When the sample first began to melt and when it was fully melted was recorded. These numbers were the range of the melting point. A slow melting point of the unknown organic acid and a standard sample was completed next. A new plateau was set about 10°C lower than the observed melting point of the unknown sample. This time once the plateau was reached, the heating was no more than 1°C per minute. This gave a much more accurate read of both melting points. If the standard did not melt in the range listed on the label of the bottle, that meant the machine was not working properly. The standard sample and the unknown organic acid melted in their appropriate ranges.…
9) Put 4mL of stock solution and 1mL of water in a test tube to make the second solution.…
2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…
.2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…
Tiara Games , living in an area that had diversity has giving you great insight on the misconceptions and stereotypes that exist about some cultures. It is very enlightening to see that your friends were able to educate you about Spanish-speaking people, by providing you with the correct information your friends are helping alleviate stereotypes. Furthermore, the word Hispanic is a more accurate description of the people who speak Spanish, but for some reason even in our area that has a heavy Hispanic population people we equate this word to mean Mexican. Nevertheless, it is very refreshing to see that you are using this experience as motivation to continue to educate yourself about the many different cultures that exist in our society. The…
On Wednesday November 2 our coordinated studies class went to see John Carlos and Dave Zirin in building 7. Going in to this I thought that it was going to be boring, I didn’t even know who John Carlos was, but I was wrong. This experience changed my life. John Carlos is an inspiration to me and so many others and I hope that I can see him again soon.…
Ms. Valerie Sorenson, Spanish teacher at Lake Forest Academy and on the Head of School Symposium committee this year, shares this burden of history. This burden of history began in the early 1900s, when Sorenson’s grandmother, Mrs. Otilia Klorman escaped the religious persecution of Jews in Vienna, avoiding certain death. Giving up her Austrian citizenship, she escaped to Valparaíso, Chile on a boat. Here in Chile, she amalgamated the Austrian and Spanish culinary experiences into a cookbook.…
The bull or the “beast” isn’t just representing the bad in all of us, it also depicts the journey to forgiveness, reconciliation of our past mistakes and the freedom of letting go of your anger. In the graphic novel, a theme of rain, washing clean wounds and the trouble of the past conveys this. A narrative quote about the boy after he kills the bull is, “a sense of calm settled over him, an emptiness that did not need to be filled”. This conveys how once that “beast” was dead, along died with it the emotional pain he had being experiencing and carrying with him for years. The boy was stuck in this…
For this project, I decided to go to San Juan Capistrano to do my observation. San Juan Capistrano is a small town located in Orange County, two hour north of where I live. It’s also my boyfriend Colin’s hometown. Going to San Juan was a random and hasty decision because I didn’t have any real connection to or interest in the town and, in fact, I hadn’t even known that it existed two months ago. Colin convinced me that San Juan would be perfect to write about because I would get to see things that I didn’t normally see in Los Angeles. I trusted him, so we agreed that I would tag along the next morning when he would be driving home for Mother’s Day weekend.…
There are twelve key principles of green chemistry that are used to evaluate how green a reaction may be. A green reaction prevents waste before it is created with little to no toxicity. Green experiments should be designed to maximize the starting materials into the final products while minimizing toxicity. Raw materials should be renewable and products should break down and not persist in the environment while reducing derivatives. All experiments should be performed in real time with use of catalysts while minimizing potential chemical accidents.…
Citations: Agosín, Marjorie. "Always Living in Spanish: Recovering the Familiar through Language." The Norton Field Guide to Writing with Readings and Handbook 2nd Edition. New York: W. W. Norton &, 2009. 21-24. Print.…
Utley, Robert M. The Lance and the Shield: The life and Times of Sitting Bull. New York: Henry Holt and Company, 1993. Print…
It was my first day of Winterbridge, a nationwide collaborative of thirty-six public and private high schools. Its goal is to foster a desire to learn in young, underprivileged students, while also exposing college and high-school students to teaching. Since I enjoy tutoring, I decided to apply to the program. I thought to myself, "Learning Spanish can't be that difficult. I can handle it." I have never been more wrong in my life.…
The Sanus VMPL3-B is definitely a great wall mount due to the fact that it's solid, durable and easy to install. The unit is made of superior quality steel and it features a durable powder-coated black finish. Furthermore, the unit is a dual-purpose wall mount: tilting and low-profile. With tilting brackets the TV is mounted 2.5 inches from the wall, allowing you to easily tilt up or down the wall mount in order to find the best viewing angle. With the low-profile brackets, the TV unit is positioned only 1.25 inches from the wall, so the brackets will be barely noticed. The Sanus VMPL3-B is suitable for TVs ranging from 27 and 90 inches, being able to support a maximum of 280 lbs. Additionally, the lateral shifts give you the possibility to…
Charli Palumbo Spanish 1-2 12 December 2012, Term 1 Whaley, Blk. 2 My First Spanish Experience When I think of Spanish, I think of my Spanish class, and when I think of my Spanish class, I remember “ o-as-a-amos-an…” along with other songs that my teacher would make us memorize. These words became redundant after my first Spanish class. The words had no meaning at the time and only gave me a sense of what Spanish is like. Honestly, I didn’t like Spanish at all, and never thought I would. Taking Spanish in high school was probably the last thing I hoped to do. Ironically, I seem to have done pretty well in Spanish the past term despite my first impressions of the language. I didn’t really know anyone as friends, but I did come close to being really good friends with some people in the class. They didn’t like Spanish either, so I guess that was one thing we shared. Whenever we were given an assignment, like a packet to complete, we’d work together. It was a fun term of learning Spanish with competition and challenges. I must say that my learning was also the result of having Senora Whaley as my teacher. I’ve never had a teacher as bright or as motivating as Senora Whaley, and she really was fun but also pushed students to do what would make them successful. Sometimes things seemed impossible, like memorizing and reciting a presentation in Spanish, or memorizing vocabulary in Spanish. Unlike other classes, Senora Whaley made class more engaging. Getting to have snack teams every Wednesday and getting to share a meal with your classmates was a great way to get closer to everyone. It was really a huge benefit. Spanish was one of the few “B”s I would see on…