from reaction of chemicals almost always contain impurities. The impurities may include some combination of insoluble‚ soluble‚ and colored impurities. To obtain a pure compound these impurities must be removed. Recrystallization is a method in which two crystallization processes was performed. It is referred to the second crystallization. (Pavia‚ Lampman‚ Kriz‚ & Engel‚ 1999) Recrystallization is a widely used purification process that removes these impurities from the compound. In performing recrystallization
Premium Solvent Solubility Acetic acid
Pharmacist Career Report By: Morgan Lasley Table of Contents Introduction……………………………………3 Type of Work………………………………….3 Personal Qualities………………………...4-6 Education Requirements……………………6 Projected cost of education………………….7-8 Licensure/Certification/Registration………….7 Working conditions………………………8-9 Advantages/Disadvantages………………..9-10 Places of employment………………………..11 Advancement opportunities…………………11 Wages and Benefits…………………………12 Job Outlook………………………………12-13 Interview…………………………………13-16
Premium Marketing UCI race classifications Management
Quality time has become a password in two career families vs. a one career family. Many working parents try to set aside time in their hectic days to devote to their children. but what are the qualities of "quality time‚" and what differences does a a two career family have compared to a one career family? These along with some other questions remain unclear in today’s society. Most parents are working at a full time job (forty hours a week) five days a week. Therefore‚ when the parents arrive
Premium Family Father Full-time
University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory APPLICATION OF DIFFERENT KINDS OF TEST TO CLASSIFY HYROXY- AND CARBONYL-CONTAINING COMPOUNDS Jane Catherine SP. Villanueva‚ Edenn Claudine C. Villaraza‚ Lorenz Oliver C. Villegas and Cristel Bernice T. Wee Group 10 2G-Medical Technology Organic Chemistry Laboratory ABSTRACT Hydroxyl group refers to a functional group containing OH- when it is a substituent in an organic compound. It is also known as the characteristic
Premium Alcohol Aldehyde Functional group
synthesize isopentyl acetate by combining isopentyl alcohol‚ which was the limiting reagent‚ with sulfuric acid (which acted as a catalyst) and excess acetic acid. Had equal amounts of acetic acid and isopentyl alcohol been used‚ approximately only two-thirds of each would be converted to acetate. Using excess acetic acid shifted the equilibrium
Premium Ester Acetic acid Distillation
A lot of work goes in to creating an ad that will get peoples attention. There are many factors that make up a good and effective ad that will grab peoples attention. The two ads being discussed in this essay both have different approaches to advertising. Ad number one is an advertisement for a college named Niemeyer University. It shows a slogan saying "My buildings will be my legacy they will speak for me long after I am gone". This slogan along with the visual image of the plans for the
Premium Education University Higher education
Career Research Report on GOOGLE and APPLE Prepared for Linguistics and Language Development Department San Jose State University Prepared by Ngoc Anh Nguyen San Jose State University April 16‚ 2014 Table of Contents INTRODUCTION During the time in U.S.‚ I have set up goals for myself. One of my goal is get in my dreamed company where I contribute my talent and experience. I am working
Premium Apple Inc. Google
RECRYSTALLIZATION Group Medical Technology Organic Chemistry Laboratory ABSTRACT Recrystallization is one of the simplest and most widely used technique for purifying organic solids through the differences in solubility at different temperatures. It is also the process in which the solid to be crystallized is dissolved to either a hot solvent or a hot solvent mixture and is cooled in a solution.In this experiment‚ acetanilide‚ the crude product of acetylation of aniline and acetic anhydride
Premium Solvent Solubility Oxygen
RECRYSTALLIZATION OF ACETANILIDE De Ocampo‚ Yves Aaron Julian Q.‚ Dela Vega‚ Roderick B. Jr.‚ Elguira‚ Cedric Tristan D. Enriquez‚ Joanne B.‚ Gabat‚ John Elliot N. Group 5 2D-Medical Technology Faculty of Pharmacy‚ University of Santo Tomas ABSTRACT The experiment was executed in order to purify compounds through recrystallization. Recrystallization is the primary used operation for purifying solid organic compounds that differ in solubility at different temperature. It is a process of dissolving
Premium Solubility Solvent Acetic acid
A small amount of the unknown (approximately the tip of the spatula was used for all the pigments) was added into each clean dry test tube. For the first test 1 mL of 3 M of HNO3 was added. As soon as the acid came into with the solid‚ the pigment was observed to dissolve while also turning the solution into a pale clear colour. The same amount was used for the HCl reagent. As soon as the acid touched the pigment it yielded in a clear solution (solid dissolved after a few shakes). When the KI was
Premium Sodium hydroxide Chemistry Base