UNIVERSITI TUNKU ABDUL RAHMAN |Faculty |: |Faculty of Engineering & Science | |Unit Code |: |UEMK1013 | |Course |: |Chemical Engineering | |Unit Title |: |Chemistry for Engineering | |Year/ Semester |: |Year 1/ Trimester 1 | |Lecturer |: |Dr. Loh Han Chern
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to cover up her fear of isolation. From the beginning Daisy has virtually been alone. Her husband Tom was not even there for the birth of their only daughter. “Well‚ she was less than an hour old and Tom was God knows where. I woke up out of the ether with an utterly abandoned feeling...” (21). She was very isolated from Tom at that point of time in their marriage. This stems her fear of being alone leads to the suspicion of Tom and Myrtle’s affair. She doesn’t have the strength to step away from
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INFRARED FREQUENCIES (bend) Aromatic (stretch) (out-of-plane bend) Alkyne Aldehyde C=C C C C=O (stretch) Alkene (stretch) Aromatic (stretch) Alkyne (stretch) Aldehyde (stretch) Ketone (acyclic) Carboxylic Acid Ester Amide Anhydride Alcohols‚ ethers‚ esters carboxylic acids Alcohols‚ phenols Free H-bonded Carboxylic acids Primary and secondary amines Nitriles Nitro C-O O-H NH C N N=O 3650-3600 3400-3200 3300-2500 ca. 3500 2260-2240 1600-1500 and 1400-1300 m m m m m s -OH‚ -NH
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RESULTS AND CALCULATIONS Ligroin Toluene Ethanol H2O Anthracene Did not dissolve Slightly dissolved Did not dissolve Did not dissolve Benzoic acid Did not dissolve Dissolved Slightly dissolved Did not dissolve Phthalic acid Almost dissolved Almost dissolved Did not dissolve Dissolved Resorcinol Dissolved Dissolved Dissolved Dissolved Sodium naphthionate Did not dissolve Did not dissolve dissolved Dissolved Table 1. Results for the five compounds tested in four different solvents. Functional Group
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amount of smoke as burning 75 to 137 cigarettes.” Unlike cigarettes‚ mosquito coils do not contain tobacco but harmful chemicals are released from burning‚ chemicals used in many bug sprays. These are formaldehyde‚ octachlorodipropyl ether and bischloromethyl ether. The active ingredient in mosquito coils is pyrethroid insecticides‚ used in many bug sprays. Pyrethroids are mostly harmless to humans‚ but Dr Ang said they can irritate
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C H A P T E R 5 Basic Concepts from Organic Chemistry 5.1 | INTRODUCTION The fundamental information that environmental engineers and scientists need concerning organic chemistry differs considerably from that which the organic chemist requires. This difference is due to the fact that chemists are concerned principally with the synthesis of compounds‚ whereas environmental engineers and scientists are concerned‚ in the main‚ with how the organic compounds in liquid‚ solid‚ and gaseous wastes
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THE PROBLEM AND REVIEW OF RELATED LITERATURE AND STUDIES Introduction Everyone is naturally pre-determined to have an offspring. This would just exist in a relationship of a man and woman. It is not always true in a relationship if there is a new life that will be formed. Several factors may contribute to the hindrances in the formation of new life especially to man because male (sperm) gamete is the one responsible to initiate fertilization‚ the union of male (sperm) and female (ovum) gametes
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COURSE 7242 Health Science II Unit A Healthcare foundation standards‚ safety‚ and infection control ESSENTIAL STANDARD 2.00 B2 14% Understand safety and infection control procedures. OBJECTIVE 2.01 B2 7% Understand safety procedures. ESSENTIAL QUESTIONS What considerations are necessary for patient‚ healthcare professional and environmental safety? What are some safety guidelines for illness and injury prevention? How do some regulatory agencies function as providers of healthcare and as healthcare
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used to separate the pigments that make up chlorophyll to analyse‚ identify‚ and quantify the components‚ using paper (stationary phase – the part of the apparatus that does not move with the sample) and chromatography solvent that was 90% petroleum ether and 10% propanol (mobile phase – liquid that carries the components). A light pencil line is drawn across the strip of paper (about 2cm from one end) and the other is attached to the splint‚ making sure that the paper doesn’t touch the bottom of
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By the year 2030‚ two thirds of the world will be unable to access water. Tapped by director Stephanie Soechtig introduces a small town in Maine‚ and discusses the water corporation called Nestle. The corporation decided to take the water resources of Maine. The supply and demand of water from major cities make the corporation pump plenty from the ground. Many question if the water from the corporation if it is safe to drink‚ and whether plastic is safe for water to be held in. The document targets
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