spectrum Parameters: Frequency = 100MHz Accumulation = 20 Because there is a need to report the location of an NMR signal/peak in a spectrum relative to a reference signal from a standard compound added to the sample‚ we use tetramethylsilane‚ (CH3)4Si‚ usually referred to as TMS. TMS is unreactive and easily removed from the sample after the measurement. By zooming in on peak E‚ we see that this signal has a chemical shift at 0ppm; therefore this is just the TMS signal‚ which doesn’t need to
Premium Oxygen Chemistry Atom
NORTHERN CARIBBEAN UNIVERSITY DEPARTMENT OF BIOLOGY‚ CHEMISTRY and ENVIRONMENTAL SCIENCE LABORATORY MANUAL Instructor: Dr. M. Wilson CHEM401: BIOCHEMISTRY for NURSES Prepared by: Oreane Collins CHEMISTRY LABORATORY REGULATIONS AND SAFETY PRECAUTIONS Reference: http://www.sciencebyjones.com/safety_rules.htm Thanks to the Flinn Scientific Safety Rules for much of the below. General Guidelines 1. Conduct yourself in a responsible manner at all times
Premium Organic chemistry Carbon Alkene
Alkane‚ Alkene‚ Alkyne & Aromatic Learning Objectives 1. 2. 3. Determine the IUPAC name‚ common name and structure of an alkanes‚ alkenes and cycloalkanes. Identify the physical properties of alkanes. Describe briefly natural sources and importance of alkanes Describe reactions of alkanes Propose a mechanism on free radicals substitution 4. 5. 6. Describe the preparation and reactions of alkenes. 7. Propose mechanism on preparation; dehydration of alcohol 8. Define carbocation
Premium Hydrogen Benzene Methane
The molarity of a solution obtained by mixing 750 mL of 0.5(M)HCl with 250 mL of 2(M)HCl will be :(1) 0.875 M (2) 1.00 M (3) 1.75 M (4) 0.975 M Ans. (1) 37. Arrange the following compounds in order of decreasing acidity : 36. OH ; Cl (I) OH ; CH3 (II) OH ; NO2 (III) OH 1.51 V OCH3 (IV) E0 Cr2 O2 / Cr 3 7 MnO4 / Mn2 0.74 V ; E 0 1.33 V ; E 0 / Cl 1.36 V Cl (1) II > IV > I > III (2) I > II > III > IV (3) III > I > II > IV (4) IV > III >
Premium Oxygen Chemistry Alcohol
DEPARTMENT OF PURE AND APPLIED CHEMISTRY Visayas State University‚ Baybay City‚ Leyte CHEM31a – BIOCHEMISTRY Laboratory Report Name: Alyssa Diane Marie L. Baljon Date Performed: May 11‚ 2015 Course & Year: BSChem 2 Date Submitted: May 18‚ 2015 Lab Schedule: M-F 7:00-10:00 Score: Group No. 4 Experiment No. 4 Lipids Objectives Observe some physical and chemical properties of lipids Distinguish between saturated and unsaturated fats. Observe saponification of triacylglycerol in the preparation
Premium Fatty acid
← Understand the manufacture of sulphuric acid. ← Synthesise the manufacture of ammonia and its salts. ← Understand alloys. ← Evaluate the uses of synthetic polymer. ← Apply the uses of glass and ceramics. ← Evaluate the uses of composite materials. ← Appreciate various synthetic industrial materiala. (H4SO4) ← USES OF SULPHURIC ACID 1. Sulphuric acid is used to produce chemical fertilizer such as ammonium sulphate and potassium sulphate‚ which are highly soluble in water
Premium Ammonia Sulfuric acid Sulfur dioxide
elimination process). This reactivity makes alkyl halides useful chemical reagents. Nomenclature According to IUPAC‚ alkyl halides are treated as alkanes with a halogen substituent. The halogen prefixes are Fluoro-‚ Chloro-‚ Bromo- and Iodo-. Examples: H Cl CH3 H F CH2CH3 fluoroethane trans-1-chloro-3-methylcyclopentane Often compounds of CH2X2 type are called methylene halides. (CH2Cl2 is methylene chloride). CHX3 type compounds are called haloforms. (CHI3 is iodoform). CX4 type compounds are called
Premium Solvent Nucleophile
Comparison of Three Isomers of Butanol SCH 4UI Abstract The Hydroxyl group on alcohols relates to their reactivity. This concept was explored by answering the question “Does each alcohol undergo halogenation and controlled oxidation?” . Using three isomers of butanol; the primary 1-butanol‚ the secondary 2-butanol and the tertiary 2-methyl-2-propanol‚ also referred to as T-butanol‚ two experiments were performed to test the capabilities of the alcohols. When mixed with hydrochloric acid in
Premium Alcohol Carbon
Draw structural formulae for the four isomers with molecular formula C4H9Br. A CH3CH2CH2CH2Br 1-bromopropane B CH3CH2CHBrCH3 2-bromopropane C CH3CHBr(CH3)CH3 2-bromo-2-methylpropane D CH3CH(CH3)CH2Br 1-bromo-2-methylpropane 7. Which of the halogenoalkanes in the previous question will react fastest with aqueous silver nitrate? Give a reason for your answer. C‚ as it forms a tertiary carbocation‚ which is the most
Premium Oxygen Ethanol Alcohol
Flavoring Agents made from Aldehydes and Ketones Peter Konn Mountain State University Chemistry 302 7/31/12 Abstract This paper looks to delve into the chemistry behind ketones and aldehydes as well as related compounds. The endeavor involved looking into the way their bonding influences how they react. It also considers the simple physical properties of these compounds including their reaction with other compounds‚ chemical structures and formulas. The paper also looked to
Premium Fatty acid