Salicylic acid

Conclusion Throughout all the test tubes that were observed, it is simple to classify samples as mixtures, compounds, or elements by viewing the particles that make it up on a picture representation. It is not as uncomplicated as observing the physical substance. Test Tube A consisted of small black and white specks that could phyically be seperated when holding a magnet to the mixture. Because this is possible, it is a heterogenous mixture also because the seperation can easily be seen.…

The little instruction leaflet included in the pack, isn't particularly comprehensive, but still it was fairly easy to work out what I needed to do and before I could start I did need to do a little preparation. The instructions did state that I would be needed cold water but didn't say whether that water needed to have been boiled first or left to stand so that any chlorine could dissipate. As I do usually boil the water that I am going to use in a home brew and further along in the…

My topic of interest is the science behind slime. I have researched and found ideas that relate to topics we have learned so far in the first marking period in science. Slime is made up of elements that are mixed together. The "slime" formula is sodium tetraborate decahydrate (Na2B4O7•10H2O), commonly known as borax, to a solution of white glue and water. White glue is an example of a polymer--it is made of long chains of polyvinyl clear plastic film molecules. These chains slide past one…

line with a pencil. Three spot were labeled A, B, and C. A sample of each standard was spotted on the analytical TLC plate approximately 1cm from the bottom of the plate. It was then enclosed in a jar filled with 2ml of 95% ethyl acetate- 5% acetic acid. (Another laboratory group conducted the same procedure but using 1:1 Hexanes: Ethyl Acetate as the developing solvent). After the TLC plate was developed until the solvent reached 1cm at its top; the plates were analyzed using UV light and the…

The amino acid, homocysteine, is basically a cysteine with an added methylene bridge. Methionine, an essential amino acid, gives rise to homocysteine, a sulfur-containing amino acid, through the methionine cycle. Methionine is converted to S-adenosyl methionine (SAM) when an adenosine group from ATP is added on to activate methionine’s methyl group. SAM is a methyl donor that is a substrate used in many reactions. When it donates the methyl group, SAM is converted to S-adenosyl homocysteine…

After you have a chimney cleaner come out and clean away all the grime that build up in your chimney over the past year, you are also going to want to clean your fireplace as well. By cleaning your fireplace right after you have your chimney cleaned, your fireplace will be ready for next fall before summer even starts. Here is what you need to do in order to effectively clean your stone fireplace. Put On Protective Wear The first thing you are going to want to do is put on protective eye wear,…

Experiment 15.2 Purpose: To show temperature effects on reactions and Le Chatelier’s principle. Materials: 2 test tubes, 2 eyedroppers, 2 beakers, 2 small cups, Clear ammonia solution, White Vinegar, Flame or stove, Pot, Water, Ice, a few leaves of red cabbage, and safety goggles. Question: How does equilibrium work with respect to temperature and concentration? Hypothesis: Depending on whether the reaction is endo-thermic or exothermic the equilibrium will shift to one side, this is also true…

Experimental Design Aim 1: Determine the amino acid sensing specificity of folliculin. Since folliculin’s novel amino acid sensing function discovery, I plan to further understand whether FLCN specifically senses a certain amino acid and if this level of detection is enough to elicit an mTORC1 response. 1.1. Determine if folliculin’s novel molecular function in amino acid sensing is triggered by glutamine. mTORC1 activation by amino acids requires FLCN where its lysosomal residence during…

Section Two - Oral Liquid Formulations (1) Characteristics of Suspensions: The oral liquid dosage form chosen to formulate was that of a suspension. Given the criteria of Drug Y it was thought best to formulate the drug as a suspension. Suspensions can be defined as ''a class of materials in which one phase, a solid, is dispersed in a second phase, generally a liquid.'' (1) There are many characteristics of suspensions that are relevant when formulating such a dosage form. They are as follows;…

(Representing the results obtained from the experiment) Known Acid HCl 1 mol dm-3 (± 0.100) Unknown Acid HCl 0.76 mol dm-3 (± 0.100) Highest Temperature (Time) 28.5 (190s) 28.6 (235s) Lowest Temperature (Time) 22.9 (55s) 22.9 (55s) Sample Calculation for the Unknown Concentration C1V1 = C2V2 1 (190 - 505) = C2 (235 - 505) 1 28.0 = C2 37.0 C2 = 2837 C2 = 0.760 mol dm-3 (±0.0500) Sample Calculation for the amount of mole in Unknown Acid Mole = Concentration Volume Mole = 0.760…