Science Camp 2008 is done. What a week.
Today, we did some food chemistry. We tested the vitamin C content in various citrus fruits. First, the campers added a known ascorbic acid solution to some 2,6-dichlorophenolindophenol. The loss of color indicated the endpoint. Then they squeezed the juice from a lime, lemon, orange, and grapefruit and tested the juice. From our most crude experiment, we found that oranges have the highest concentration of vitamin C followed by lemon, lime and then grapefruit. This is probably not a reliable result, but it was a result.
The demo today was gummi bears in molten potassium chlorate (KClO3) and thermite.
The thermite reaction is great. It is a mix of 3 parts iron (III) oxide and 1 part aluminum powder. This is placed in a clay flower pot and ignited. The ignition is difficult. There are a few traditional methods. These include Mg fuse or KMnO4 and glycerol, but both are unreliable. I have adopted a much more reliable method. Since I typically do the gummi bear in molten KClO3 at the same time as the thermite (since both require a trip to the campus fire pit) I once wondered if the gummi reaction could ignite thermite. Yes it can.
I place the thermite mixture in a clay flower pot and make a depression in the mixture. I place a few grams of KClO3 and melt it with a propane torch. When is it mostly melted, I add the gummi bears. They react and then thermite becomes ignited. So far, I'm 4 for 4 using this method.
Hopefully, pictures will appear soon.
Subscribe to:
Post Comments (Atom)
5 comments:
The foreclosure of coloration advised this endpoint. They'll likely packed this drink at a limescale, of lemon, lime, in addition their website to grapefruit in addition to tried this drink. By your almost all gross try, most of us located of which grapefruits develop the best attentiveness connected with vitamin supplements G and then of lemon, limescale then grapefruit.
The particular property foreclosure regarding coloration suggested this kind of endpoint. They are going to probably crammed click to explore kind of beverage with a limescale, regarding orange, lime green, furthermore their particular internet site to be able to grapefruit as well as experimented with this kind of beverage. From your virtually all yucky test, many of us positioned that grapefruits produce the most effective attentiveness linked to nutritional vitamins Gary and regarding orange, limescale next grapefruit.
This house property foreclosure relating to coloration recommended this type of endpoint. They're going to possibly packed simply click to explore be able to investigate sort of refreshment using a limescale, relating to fruit, lime green, moreover his or her website in order to grapefruit along with tried this type of refreshment. From the practically all yucky analyze, most of us placed in which grapefruits generate the top attentiveness connected to supplements Gary and also relating to fruit, limescale subsequent grapefruit.
Here in this article, you give a couple of motion pictures names which are the blockbuster motion pictures and all of the films are so staggering. All of the characters of these https://www.litreview.net/writing-literature-review-service-in-ireland/ site are to same. I mean extra the world from the awful people.
Science camp is necessary for the students who need such subjects. This is going to be online platforms where http://www.personalstatementreview.com/quick-personal-statement-review-worst-personal-statement-mistakes-to-avoid/ is available for students.
Post a Comment