Lab: Laboratory Manual Notes * Mohrig‚ Jerry R.‚ Christina Noring Hammond‚ and Paul F. Schatz. Techniques in Organic Chemistry. 3rd ed. N.p.: n.p.‚ 2010. Print. 4. Balanced Equations: Sytrene + Benzaldehyde Oxime OR OR Cis-Stilbene + Benzaldehyde Oxime OR OR Trans-Stilbene + Benzaldehyde Oxime OR OR 5. Reagents and Quantities: Reactant | MW (g/mol) | Grams | Moles | Molarity | Density (g/mL) | Volume (mL) | Cis-Stilbene | 180.25 | 0.6 | 0.6/180.25 = 0.003 | 0.33 M | 1.011 | 9
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melting point indicate the final synthesized alkene product could be identified as a pure sample. In the chance of an impure product contaminated by the starting benzaldehyde‚ of the product could have been lower‚ however the experimental melting point was not lower than expected‚ which would have been the case had unreacted benzaldehyde remained in the product‚ it is likely that product was lost due to experimental error on the part of the students when purifying the synthesized product. It is also
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Lab Report Macrocyclic Synthesis (Heme Analog) I. Purpose of Experiment and Introduction The purpose of this lab experiment is to prepare meso-tetraphenylporphin (TPP) and its copper‚ cobalt or zinc complex by condensing benzaldehyde with pyrrole in boiling propanoic acid. II. Introduction and Background There are two types of proteins that function as oxygen carriers: myoglobin (stores the oxygen) and hemoglobin (present in red blood cells and is responsible for oxygen transport)
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* Add 10 drops of the following solution: * Tube 1: formaldehyde * Tube 2: benzaldehyde * Tube 3: acetaldehyde * Tube 4: acetaldehyde * Tube 5: acetone * Transfer all test tubes in a boiling water bath for 10 minutes * Record all observations Results: Sample | NaOH | Observations | 1. Formaldehyde | 40% NaOH | Alcohol-like odor | 2. Benzaldehyde | 40% NaOH | The color became yellow; immiscible | 3. Acetaldehyde | 40% NaOH | The color
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Reactions of Carbonyls-Aldehyde/Ketone Analysis: Introduction: The carbonyl group is a rich source of many important reactions in organic chemistry‚ with two fundamental properties that are primarily responsible for its diverse chemistry. The first is the polarization of the. Carbon-oxygen pi bond‚ owing to the relatively high electro negativity. The second property of a carbonyl function is to increase the acidity of the alpha-hydrogen atoms‚ which are the hydrogen’s
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dichromate and 1 drop of concentrated sulfuric acid were added to 1-pentanol‚ the color of 1-pentaol turned into dark green. In second experiment‚ precipitation was found when 6 drops of 2‚4-dinitrophenylhydrazine were added to both 5 drops of benzaldehyde and 5 drops of acetophenone. Based on these data‚ it is possible to find alcohol by oxidation and aldehyde by observing precipitation Introduction This experiments is to find if one substance has alcohols‚ aldehydes or ketones. If one
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glycosides‚ chlorogenic acid‚ tannins‚ mannitol. • Constituent – Mannitol • Uses: • Mild laxative • Osmotic diuretic • Uses: • Mild laxative • Osmotic diuretic Drugs containing Acids‚ Alcohols and Esters • Sumatra Benzoin (Gum Benjamin) (Fam. Styracacea) • Styrax benzoin • S. paralleloneurus • Constituents •
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gently into the solution. 3. Transfer the beaker from the ice bath onto the hot plate and measure the temperature of this solution to make sure it was still at or under 25 °C. 4. After letting the mixture stir for some time‚ prepare 5mL of benzaldehyde with 1.85mL of acetone into a 50mL Erlenmeyer Flask. 5. Transfer about half of the mixture into the stirring solution of NaOH‚ water and ethanol. After 2 -3 minutes‚ yellow cloudiness formed. After 10 minutes add the remainder of the solution
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Prelab 5B Macrocyclic Synthesis OBJECTIVE: The objective this week is to produce Tetraphenylporphyrin and its metal complex. This will be carried out by condensation of 4 equivalents of Benzaldehyde and pyyrole in the presence of propanoic acid. The product will undergo UV/Visible Spectrum tests to determine its lambda max. The lambda max will show us the relationship between a conjugated system and the visible spectrum. PROCEDURE: Step 1: preparation of meso-tetraphenylporphyrin (TPP)
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Adol Condensation Introduction: This reaction is carried out by adding benzaldehyde and acetone into a flask. The product created is a 1‚5-diphenyl-1‚4-pentdiene-3-one‚ which includes two double bonds‚ and two benzyl ring functional groups. This is a dehydration reaction that occurs twice in order to form the diene. After obtaining the product‚ via vacuum filtration‚ it will be recrystallized and then analyzed for purity by determining both products’ melting point. The two products will be
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