Cadet Eric Wiggins Date: 18 September 2014 Course Name: Chem 100 Instructor: Captain Zuniga Section: M3A Identification of a Copper Mineral Intro Minerals are elements or compounds that are created in the Earth by geological processes. The method of isolating metals in a compound mineral is normally conducted through two processes.
Pure ASA crystals are isolated from the solution with a Hirsch Funnel that was used with a filter. The melting point of the pure ASA crystals were calculated in order to calculate of absorbance. Iron (III) salicylate dianion must contain the acidified solution Fe3+ in order to measure the absorbance values. The level of the impurity can
Unknown 6- Isopropyl Alcohol We found that unknown 6 was Isopropyl alcohol. Its chemical name is isopropanol and the chemical formula C₃H₈O but is typically called isopropyl alcohol. Isopropyl alcohol is today used as a primary ingredient in rubbing alcohol. Is smells very unpleasant and is used for disinfecting pads used by medical professionals for tasks such as sanitizing small instruments, wiping down surfaces, and cleaning a patient’s skin before an injection.
3. To purify and identify the product, recrystallization is used in order to purify the product, then melting point and TLC techniques are used to identify the product. Theory 4.
The last few days I have had the chance to work with Chrystal I wanted to do a quick recap on what we have been able to cover in her training so far and confirm improvement on points Amanda was able to make in her first recap! Chrystal is overall very confident in setting up for appointment, filling out tray covers, getting patients from the front, walking them to the front, and taking photos (we discussed improvements on photos and techniques.) Here are a few appointments we have covered in the last few days. Comfort shorts: She is very eager to jump in!
It has an infinite solubility with a density of 1.05. Its pH in a 1.0 M solution is at 2.4 with a vapor pressure of 11mmHg at 20 °C or 68 °F and a vapor density of 2.1 in air. It is stable under ordinary conditions of use and storage. Heat and sunlight may contribute to its instability. Heat, flame, ignition sources, freezing and incompatibles are conditions that must be avoided.
The alum produced in experiment 16 was used to prepare three different solutions. These solutions tested three different methods of creating crystals. The crystals formed by the vapor diffusion method were the smallest and least numerous. They had grown throughout most of the bottom of the test tube and were cloudy, which indicates a low purity. The crystals formed by the layering method were scattered throughout the solution and were also of low purity.
Also, although this likely served no contribution in disheveling the results, using a stirrer of the same material to ensure the separate testing of each substance will be as uniform as
Aspirin is considered a “polydrug” due to its variety of uses stretching from pain-relief to disease prevention. Salicylic acid is derived from the bark and leaves of the willow tree. Salicylic acid belongs to a group of phytochemicals which have been shown to have positive effects on human health. Salicylic acid is a phenolic compound that can be found in a variety of plants and is a crystal organic carboxylic acid. However, it is more commonly viewed as the primary metabolite and active compound of acetyl salicylic acid, which has been used as an anti-inflammatory drug by physicians for over 100 years.
Introduction Rose quartz is a pale pink to rose-red variety of quartz. Quartz is the second most plentiful mineral found in the Earth’s crust. Rose Quartz occurs only in massive formations, with no crystal faces, edges or points. It is often hazy or turbid; therefore it lacks good transparency. It also contains microscopic fibers, which can on occasion produce a cat’s eye or star effect within the stone.
Energy-Based Therapies Including Reiki, crystal healing, and breathing techniques Christina Tewfik New York Institute of Technology Energy-Based Therapies Including crystal healing, Reiki, and Music Therapy Many people do not know the real truth about energy therapies. People who suffer from constant headaches, swelling with muscles, nausea, or even anxiety are the common patients who seek energy therapy treatments. Energy therapies are an alternative for surgery or consuming medicine.
The purpose of this experiment is to successfully grow a crystal. Materials: • Epsom Salt • Food Coloring • Beaker, Small bowl, or Jar Procedure: 1. Bring 1/2 cup of water to a boil. 2.
The sample was placed into appropriate vials as the liquid (L), and the vial was closed by the stopper. For 59.0℃ (acetone-rich side of azeotrope). 25 mL of chloroform and 75 mL acetone were added into the 250 mL round bottom flask. Small amount of boiling stone was added into the flask.
It was the coldest day of her life, both physically and emotionally. It was during the winter and Christmas was nearing once again. It didn 't feel like Christmas however, it had yet to snow a single inch and the temperature had yet to drop below 60 degrees. Mino had come to expect this though as everybody was talking about how this would be the year where they 'd get an "empty Christmas”. Mino viewed the snow like she viewed many things, things that just come with events.
If impure, preform recrystallization procedure to remove the impurities. Then calculate Percent Recovered on crystals formed, and preform melting point procedure. 2. You find that a solid substance you are trying to purify is very soluble in ethanol, but not very soluble in water. You decide that you are going to try to recrystallize it from a solvent pair, consisting of ethanol and water.
