ethanol/acetone Recrystallize Characterization of aldol product Perform this test on both unknown compounds Add 1 drop of the unknown compound to a test tube and add 1 mL of acetone Then Add 1 drop of the chromic acid-sulfuric test reagent directly into the solution. Shake the mixture A green bluish green precipitate appears within 1 min if the unknown compound is an aldehyde (Aliphatic aldehydes give precipitates with 15 s whereas aromatic aldehydes usually take 30-60s. Acetone and other
Premium Aldehyde Solvent Ethanol
oxidizer that you may not have discussed in lecture called Oxone ®. Oxone is a persulfate mix that reacts with acetone to produce dimethyldioxirane. Procedure: Oxone reaction Dissolve 0.40 g oxone ® in 2.0 mL of water by shaking vigorously in a sealed vial. (Caution! Be sure the vial is sealed because oxone is a strong oxidizer.) Dissolve 50 L of cyclohexene in 2.0 mL of acetone in a small Erlenmeyer flask. Cool the cyclohexene solution in an icebath‚ then add the oxone solution dropwise
Premium Thin layer chromatography Solvent Oxidizing agent
I found that among mentioned substances acetone and ethylene glycol are soluble in water‚ therefore we can say that they are polar substances. Besides‚ I observed that biphenyl‚ butyl acetate‚ glycerol and motor oil are nonpolar substance. These compounds were soluble in hexane. Meanwhile‚ magnesium
Premium Chemistry Chemical bond Ionic bond
Objectives After studying this Unit‚ you will be able to • name haloalkanes and haloarenes according to the IUPAC system of nomenclature from their given structures; • describe the reactions involved in the preparation of haloalkanes and haloarenes and understand various reactions that they undergo; • correlate the structures of haloalkanes and haloarenes with various types of reactions; • use stereochemistry as a tool for understanding the reaction mechanism; • appreciate the applications of organo-metallic
Premium Organic reaction Alcohol Chemistry
Materials: ● ● ● ● ● ● ● ● ● ● ● 1000 ml beaker/2 gallon tank air pump air stone tubing eye droppers 10 ml pipettes graduated cylinders small petri dishes dissecting scopes/hand lenses beakers stopwatch live brine shrimp Lysol Bleach vinegar acetone (nail polish remover) Procedures: Place live brine shrimp in a small aquarium tank or a 1000ml beaker with an aerator. Place 2 petri dishes at each lab table. Three tables will be working on sample A and the other half working on sample B
Premium Harshad number
experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol (SN1) Bromobenzene NR NR Bromocyclopentane X 2 sec Bromocyclohexane NR 4 sec 2-bromobutane 5 min 2 sec 2-chlorobutane
Free
Methodology The reagents used for this experiment were the following: * Methyl red * 0.1M Nitric Acid * 0.5M Copper sulfate – sulfuric acid mixture * 0.1M Sodium hydroxide * Acetone * Distilled water The apparatus used were the following: * Phywe Transference Number Apparatus * Analytical Balance * Buret * Beaker * pipet The experiment starts off with the preparation of the set-up for the transference vessel. Fill the double U-tube with 0.1M Nitric acid
Premium Sulfuric acid Electrolysis Sodium hydroxide
1. What is the ideal solvent for crystallization of a particular compound? What is the primary consideration in choosing a solvent for crystallizing a compound? volatile in order to be easily removed from the purified crystals. In selecting a solvent consider that like likes like. Polar compounds dissolve polar compounds and non-polar compounds dissolve non-polar compounds. Solvent will dissolve a large amount of the impure compound at temperatures near the boiling point of the solvent the compound
Premium Solubility Solvent Chemical polarity
GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method‚ 2) to learn how to operate gas chromatographs specific to COD‚ 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures‚ 4) to be introduced to and to interpret the quantitative data available via gas chromatography‚ 5) to gain insight into how the GC technique is used
Premium Chromatography Gas chromatography
Bacterial Smears Are Fixed before Staining to? Answer It is important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without
Premium Gram staining Bacteria Staining