Potassium hydroxide

In this experiment, methyl benzoate was synthesized from benzoic acid and methanol with acid catalyze using Fisher Esterification. First benzoic acid and methanol were mixed in 100 mL round bottom flask. We cooled the mixture in ice and poured 3 mL of conc. H2SO4 and swirled to mix compounds. Then we refluxed the mixture for 1 hour. We let the solution cool and then decanted into a separatory funnel containing 50 mL of water and rinsed the round bottom flask with 35 mL of tert-butyl methyl ether

Materials. The following chemicals are purchased and used as received. Cadmium oxide (CdO, 99.99 %), and potassium sulfide (K2S, 95 %) are obtained from Strem Chemicals. 1-octadecene (90 %), 3-mercaptopropionic acid (99 %), and α-terpineol (97 %) are purchased from Acros Organics. Selenium powder (Se, 99.99 %), oleic acid (OLAC, 90 %), oleylamine (OLAM, 70 %) and acetic acid (99.7 %) are purchased from Sigma-Aldrich. Toluene (99.9 %), 2-propanol (99.9 %), ethanol (90 %), acetonitrile (99.9 %), and

pH Titration Experiment #3 Joseph Dupars Partner: Logan Martz Chemistry 113, Section 2 October 23, 2014   I. Introduction In this experiment the acetic acid concentration in a sample of Great Value distilled white vinegar, 5% acidity, will be determined in weight percentage and in molarity. The concentration of phosphoric acid in the Unknown solution numbered 86 will also be determined. The equilibrium constants will also be determined for both. II. Experimental To determine the concentrations

1. Why are three replicate titrations done for each sample? The more times an experiment is done, the more reliable the answer becomes. Therefore, three replications are done in order to reduce the error. 2. What other household products could be analyzed by titrations (suggest three)? We could analyze other household products, for example, drain cleaner, milk of magnesium, and citrus fruits. 3. Why is it necessary to add an indicator? Describe how an indicator works. A chemical indicator

In this experiment, the concentration of acetic acid in a sample of vinegar was calculated. The sample used for the experiment was sample 4, created on 2/22/2017. The concentration was calculated by titrating the vinegar with NaOH. Unfortunately, NaOH does not form a pure solution so its concentration also had to be calculated. This was done by using it to titrate a solution of KHP, which does form a pure solution. Once the concentration of NaOH was known, it could be used to calculate the mols

IR spectrums were given for both o-nitrophenol and p-nitrophenol. For o-nitrophenol a strong broad vibration due to an O-H stretch at (Insert O-H Stretch Value for ortho) and for p-nitrophenol a very strong broad vibration due to O-H stretch at (Insert O-H stretch Value for para) can be seen. These both agree with the expected literature range for the vibrations for the O-H stretch of a Hydroxyl group of 3200-3500 cm-1 possibly being slightly lower due to conjugation within the aromatic ring. A weaker

My question is, which mineral will make the water most acidic? My hypothesis is, if I use Granite, Obsidian, and Rhyolite to make the water acidic, then I believe rhyolite will make the water most acidic. In this project I filled three cups with a half cup of water, then I tested the pH of water. After that I put the rocks in different cups, and I waited for ten minutes. Then I tested the pH. pH stands for potential Hydrogen. According to the pH scale the most acidic is one and the most basic is

Stoichiometric amount is the amount of reactants and products used in a balanced chemical equation. For example, 1 slice of cheese + 2 slices of bread ⟶ 1 sandwich the ingredients, bread and cheese, are the stoichiometric amount with the ratio 2:1. So say you have 28 slices of bread and only 11 slices of cheese you can only make 11 sandwiches and have 6 slices of bread left over. This circumstance displays how cheese slices are the limiting factor and the bread slices are the excess. Another example

Introduction: I chose this project because I am a competitive swimmer and I have been swimming for the past ten and a half years. I wanted to find out how much chlorine remains in a pool each day after chlorination. I am interested to see how much residual chlorine is left and the range in which there appears skin irritation and red eyes because I have experienced the red eyes and itchy skin due to over chlorination. Chlorine is used in pools in either a gaseous or as sodium or calcium hypochlorite

After ibuprofen samples had endured their given exposure time and were capped, cetirizine research samples were prepared in order for analysis. The extraction solvent used for this part of the experiment was 25% distilled water and 75 % methanol. Any cetirizine solutions made with the extraction solvent were exposed in the proper organic waste container after use. Initially, a clean 25.00 mL volumetric flask was conditioned with the extraction solvent. The capped pills samples were recommended to