my pure sample so I would conclude that it was quite pure. 2. Suppose you were performing a recrystallization and you had just added the optimal amount of boiling solvent to dissolve your impure solid…but then you a squirrel ran by and you decided to chase it. When you got refocused and returned to your experiment‚ you realized that you’d left your Erlenmeyer flask containing your recrystallization solution on the hot plate for too long. (1) How did you know that you’d left your flask on the
Premium Temperature Purity Celsius
Four elements‚ hydrogen‚ carbon‚ oxygen and nitrogen‚ are the major components of most organic compounds. Consequently‚ our understanding of organic chemistry must have‚ as a foundation‚ an appreciation of the electronic structure and properties of these elements. The truncated periodic table shown above provides the orbital electronic structure for the first eighteen elements (hydrogen through argon). According to the Aufbau principle‚ the electrons of an atom occupy quantum levels or orbitals starting
Premium Electron configuration Atom Periodic table
Organic Chemistry Laboratory Report. Experiment 1: Crystallization. Objectives: 1. To study the crystallization process. 2. To identify the best suitable solvent to use for the crystallization process. 3. Gain an experience in purifying an organic compound by the techniques of the crystallization. Introduction. Crystallization is a technique which chemists use to purify solid compounds. It is one of the fundamental procedures each chemist
Free Chemistry Solvent Solubility
3796509 Yaw Adu PokuEric Adjei 3809009 INTRODUCTION Recrystallization is a method of purifying a solid. There are two types of impurities: those more soluble in a given solvent than the main component and those less soluble. (If there are any impurities that have the same solubility as the main component‚ then a different solvent needs to be chosen.) When organic substances are synthesized in the laboratory or isolated from plants‚ they will obviously contain
Premium Solubility Temperature Crystal
13. ORGANIC CHEMISTRY IV) ALKYNES SYNOPSIS Alkynes are commonly known as acetylenes. Acetylene is the simplest and important member of the alkyne series. • Alkynes contain – C ≡ C – • General molecular formula of alkynes is CnH2n–2 • Triple bonded carbons are ‘sp’ hybridized and greater s – character is associated with it. • Alkynes will exhibit chain‚ position and functional isomerism. • Their functional isomers are alkadienes and cyclo alkenes. • The minimum number of carbons required to exhibit
Premium Alkene Acid Chlorine
GROUP 2 EXPERIMENT 15 BSP2M ORGANIC CHEMISTRY LABORATORY MR. WILBERT MORALES Chemical Structure Physical Properties Hazards Acetonephenone Physical state and appearance: Liquid. (Liquid.) Odor: Not available. Taste: Not available. Molecular Weight: 120.16 g/mole Color: Colorless to light yellow. pH (1% soln/water): 7 [Neutral.] Boiling Point: 201.7°C (395.1°F) Melting Point: 19.7°C (67.5°F) Critical Temperature: Not available. Specific Gravity: 1.03 (Water
Premium Vapor pressure Temperature Water
A carbohydrate is an organic compound that consists only of carbon‚ hydrogen‚ and oxygen‚ usually with a hydrogen:oxygen atom ratio of 2:1 (as in water); in other words‚ with the empirical formula Cm(H2O)n. The carbohydrates (saccharides) are divided into four chemical groupings: monosaccharides‚ disaccharides‚ oligosaccharides‚ and polysaccharides. In general‚ the monosaccharides and disaccharides‚ which are smaller (lower molecular weight) carbohydrates‚ are commonly referred to as sugars.
Premium Cellulose
National University of Singapore CM1501 Organic Chemistry for Engineers Lab Report Experiment 2: Separation and Identification of Two Organic Compounds 10th October 2013 Abstract This experiment involves the separation and identification of 2 organic compounds (1 Neutral Compound and 1 Acidic Compound) in a mixture. Separation techniques used in this experiment include solvent extraction‚ simple distillation and recrystallization using a suitable solvent determined through a solubility
Premium Chemistry Solvent Solubility
THE CHEMISTRY OF ORGANIC MOLECULES I. MACROMOLECULES-large molecules that are composed of smaller molecules and atoms that are bonded together. These are among the largest of all chemical molecules. A. Polymers-the largest of the macromolecules. These are composed of numerous‚ small identical subunits known as Monomers. There are 4 major polymers that are important for living organisms. These polymers are; carbohydrates‚ lipids‚ proteins and nucleic acids. B. Polymers
Premium Amino acid Protein DNA
|Chapter 5: | |Structure and Preparation of Alkenes. | |Elimination Reactions | Summary Alkenes contain the C=C functional group which can be prepared by 1‚2-elimination reactions such as: • dehydration of alcohols (- H2O) or • dehydrohalogenation of alkyl halides (- HX). Zaitsev’s rule indicates that the preferred product is the more highly substituted
Premium Alkene Organic reaction Alcohol