Experiment 2: Intermolecular Forces Performed: 9/12/2011 Submitted: 9/20/2011 Chemistry 1046L PART I: Purpose: The purpose of partI in this experiment is to identify a variety of unknown substances’ properties using observations of the temperature changes that occur during evaporation. We know that substances with weaker intermolecular forces‚ such as London dispersion‚ will have a faster vaporization rate and thus a higher temperature difference compared to
Premium
According to my research‚ Sodium Borate is normally slightly irritating to skin and eyes. When chronic exposure occurs‚ it produce eye irritation‚ cough‚ and skin rash. The hairspray I use each morning includes Aminomethyl Propanol (C4H11NO). At higher concentrations‚ Aminomethyl Propanol is considered
Premium Skin Cosmetics Personal care
to alkenes. This caused an electrophilic halogenation reaction. If the bromine reacted with the alkene the bromine would discolor from orange and turn clear. Experiment Part A) Solubility of Alkanes: 1 mL of nine solvents (water‚ methanol‚ n-butanol‚ ethylene‚ glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane.) was added to nine sample vials. Each vial then had 0.5 mL of the alkane decalin added to each one. The mixtures were stirred to determine if the materials dissolved
Premium Solvent Solubility
(3) amino acids; (4) enzymes; (5) organic solvents; and (6) synthetic fuels. Some Microbial Species Used for Producing Commercial Products. Industrial Chemicals Saccharomyces cerevisisae Ethanol (from Kluyveromyces fragilis glucose) Clostridium Ethanol (from acetobutylicum lactose) Asergillus niger Acetone and Butanol Citric acid Amino Acids and Flavor-enhancing Nucleotides Corynebacterium L-Lysine glutamicum 5’- inosinic acid and Corynebacterium 5’ – guanylic acid glutamicum MSG Corynebacterium gluatamicum
Premium Sewage treatment Yeast Bacteria
Experiment no. 1: PHYTOCHEMICAL SCREENING INTRODUCTION Phytochemicals are define as the chemical compounds found or produced by the plants. The term is also define as the chemicals from the plant that may affect health [1]. This compounds are non-essential compounds which means that they are not required by the human body for sustaining life. There are more than thousand known phytochemicals. Some of the well-known phytochemicals are lycopene in tomatoes‚ isoflavones in soy and flavanoids in
Premium Hydrochloric acid Acid PH indicator
LONG REPORT FORMAT A typical lab report should include the following sections: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Title Page Table of Contents List of Figures Abstract Introduction Apparatus Procedure Safety Results Recommendations and Conclusion Appendix References Follow the detailed instructions in the CHE writing guide. Make sure to include page numbers. 1. Title Page Follow the sample on page 15 of this document. Although counted in the pagination‚ this page is not numbered. (A
Premium Grammatical tense Documents Abstraction
Subject Content Most of the objectives specified in this section relate to Knowledge with Understanding‚ although some indication has been given as to where the skills of Handling Information and Solving Problems may be developed. Teachers are reminded that‚ in the written papers‚ 40% of the marks are allocated to these higher ’thinking’ skills. In almost every section‚ students should therefore be given practice at dealing with unfamiliar situations so that these higher thinking skills can be developed
Premium Oxygen Ionic bond Sodium chloride
Streptococcus pyogenes Research paper MCB 2010C March 17‚ 2014 Nature of Causative Organism Streptococcus pyogenes‚ a group A streptococci‚ is a gram-positive‚ non-spore forming bacteria that can be seen as oval cocci chain forming shapes less than 2 micrometers in diameter under the microscope. It is a facultative anaerobe that can use fermentation for its metabolism. It needs a blood containing medium to grow and exhibits beta-hemolysis. It is a non-motile‚ nonspore forming bacterium. S. pyogenes
Premium Bacteria Microbiology Streptococcus
could then be calculated for. The experimental results revealed an average molar mass of 31.10g/mol for methanol (theoretical value of 32.04g/mol) and an average molar mass of 60.28g/mol for unknown # 20. which is closest to the molar mass of iso-propanol‚ 60.10g/mol. The differences in the molar masses of the experimental values and theoretical values may have been to sources of error such‚ as weighing the flask before it has fully cooled down to room temperature‚ or allowing too much vapour to escape
Premium Gas Mass
46202 This project was collaborated on by three different organic chemistry students‚ who individually synthesized and researched each of the three substitution reactions in this experiment.. The first reaction was an Sn2 reaction of 3-phenyl-1-propanol with NaBr and H2SO4 to create1-bromo-3-phenylpropane. Though multiple trials were ran no successful results of reaction one were obtained. Reaction two was a Sn2 of 2-pentanol with H2SO4 and NaBr. Changes were made to each run of the reaction‚ but
Premium Chemical reaction Chemistry Water