What product results when an aldol is dehydrated? A) β-diketone B) β-ketoester C) conjugated alkyne D) β‚γ-unsaturated aldehyde E) α‚β-unsaturated aldehyde 3) 4) Which of the following will react most slowly with an enamine? A) methyl bromide B) allyl bromide C) acetyl chloride D) isopropyl chloride E) benzyl chloride 4) 5) What type of product results when 3-pentanone reacts with dimethylamine? A) enolate B) enol C) enamine D) imine 5) E) amide 6) The relationship between
Premium Prime number Harshad number
FORENSIC CHEMISTRY FORENSIC CHEMISTRY SUMMARY NOTES |Ensuring accuracy and contamination of samples for analysis – 1a and 1A |Ensuring accuracy and contamination of samples for analysis – 1a and | | |1A (continued) | |Caution must be taken by scene investigators with regard to their tools‚ |
Premium DNA Amino acid Protein
the stratosphere due to its faster destruction by chemicals released by man into the environment. Depletion is mainly caused by chlorofluoro carbons (CFCs)‚ halons‚ methyl chloroform and carbon tetrachloride. There substances contain chlorine or‚ bromine which‚ can reach the stratosphere. These elements are capable of catalytically breaking down ozone into oxygen. Ozone depletion can also be caused by supersonic jet exhausts. They liberate NO which reacts with 03 to form N02 and 02 The area on the
Premium Ozone depletion Greenhouse gas Atmosphere
The Grignard Reaction Abstract Through the use of the Grignard reaction‚ a carbon-carbon bond was formed‚ thereby resulting in the formation of triphenylmethanol from phenyl magnesium bromide and benzophenone. A recrystallization was performed to purify the Grignard product by dissolving the product in methanol. From here‚ a melting point range of 147.0 °C to 150.8 °C was obtained. The purified product yielded an IR spectrum with major peaks of 3471.82 cm-1‚ 3060.90 cm-1‚ 1597.38 cm-1‚ and 1489
Premium Education World War II Learning
1024 molecules Ions Ionic compounds do not contain atoms or molecules. Instead‚ we talk about ‘formula units’ The formula unit (f.u.) is the same as the chemical formula Calculate the number of formula units in 2 moles of magnesium bromide [MgBr2] Number of Formula Units = moles x f.u. in 1 mole = 2 x 6.02 x 1023 f.u. = 1.20 x 1024 f.u. Calculate the number of ions in 0.25 moles of potassium sulphate [K2SO4] 1 formula unit = 3 ions (K + K + SO4) 6.02 x 1023
Premium Oxygen Hydrogen Atom
Relevance of Chemistry 3 Analytical Chemistry 5 Chemical and Biology Safety 9 Classification of Hazardous Chemicals 15 Biochemistry 24 Organic Reactions 32 Radiation 34 Environmental Concerns 40 The Relevance of chemistry to Occupational Safety‚ Health an Environment Chemistry is the science of chemicals which studies the laws governing their formation‚ combination and behaviour under various conditions‚ it
Premium Chemistry Spectroscopy Analytical chemistry
Spice Qualities and Specifications I. SPICE SPECIFICATIONS A. Introduction A spice can be defined as the dried aromatic parts of natural plants‚ whose characteristics such as color and constitution may vary depending on year of harvest and place of harvest‚ among other factors. The quality of processed spices can also vary due to differences in separation and milling processes used. For these reasons it has been deemed necessary to establish quality standards or specifications for
Premium Spice Aspergillus Black pepper
meta-directing. Reactions: Electrophilic aromatic substitution rxns‚ Nucleophilic aromatic substitution rxns (via benzyne or substitution-elmination)‚ Diels-Alder (endo/exo‚ inter/intramolecular)‚ Diene 1-2 and 1-4 electrophilic addition‚ Eliminating bromine from arenes via Grignard‚ Carboxylation of arenes via Grignard 4 Properties of: Amines (pkAs and resonance structures for aromatic and aliphatic molecules)‚ amides (sp2 hybridized by amide bonds)‚ anilines (aromatic amines) Structure of: Sugars
Premium Amine Carbonyl Amide
Pluto’s moon? -CHARON 19. The 3 main parts of a comet are the nucleus‚ the tail‚ & the? -COMA 20. What human organ cleans fifty gallons of blood everyday? -KIDNEY 21. What’s the only metal that’s not a solid at room temperature? -BROMINE 22. English chemist & physicist discovered hydrogen. - HENRY CAVENDISH 23. From whta school did the nursing board topnotch of 2007 came from? -OUR LADY OF FATIMA 24. Which type of matter has a definite volume but no definite shape? -MATTER
Premium Chemical element Periodic table Human anatomy
Cooling Water Problems and Solutions Course No: M05-009 Credit: 5 PDH A. Bhatia Continuing Education and Development‚ Inc. 9 Greyridge Farm Court Stony Point‚ NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com COOLING WATER PROBLEMS AND SOLUTIONS Water is used in cooling systems as a heat transfer medium and frequently also as the final point to reject heat into the atmosphere by evaporating inside cooling towers. Depending on the quality of available fresh
Premium Water Corrosion