By: Nicholas Lucas Chemiluminescence Group members: Nicholas Lucas Meagan Williams Kelli Smith TJ Jones Chemistry Lab 151-003 Professor Stewart 19 March 2013 Introduction: The objective of this experiment is to carry out a systematic series of experiments in order to determine which chemicals and what ratio of the chemicals produce the brightest light and which produce the longest lasting light through the process of chemiluminescence. Chemiluminescence is the production
Premium Chemical reaction Chemistry Chlorine
Abstract The photocatalytic degradation of phenol has been tested primarily with titanium dioxide (TiO2) either alone or in combination with other materials. In this work‚ Mg/Al hydrotalcites prepared by two methods using inorganic (HC) or organic (HS) chemical reagents‚ along with mixed oxides produced by calcination of these products (HCC and HSC) were mixed with titanium isopropoxide to obtain hydroxide-TiO2 compounds (HCC-TiO2 and HSC-TiO2) to test their photocatalytic activity compared with
Premium Ultraviolet Hydrogen Oxygen
The chemistry of hairspray What is hairspray: introduction Hair spray (or hair lacquer) is a common household aqueous solution that is used to keep hair stiff or in a certain style. Weaker than hair gel‚ hair wax‚ or glue‚ it is sprayed to hold styles for a short period of time. Using a pump or aerosol spray nozzle it sprays evenly over the hair. Hairspray was first developed and manufactured in 1948 by Chase Products Company‚ based in Broadview‚ Illinois.Its active ingredient is a suitable
Premium Oxygen Ethanol Hairdressing
for 5 hours. Once extraction was completed‚ the resulted essential oil was dehydrated using sodium sulfate (Merck). The essential oil was stored at temperature of 4ºC until using (12). In order to provide different concentrations of the extract‚ Dimethyl sulfoxide (DMSO) was used. Gas chromatography/mass spectrometry analysis of essential oil Isolation and measurement of the sample was done by coupled gas chromatography device (GC/MS) SHIMADZU 17 A with SHIMADZU mass spectrometry of QP5050A model
Premium Cytotoxicity MTT assay Leishmania
Notes Aldehydes and Ketones The major similarity between an aldehyde and a ketone is the carbonyl group. A carbonyl group is a carbon atom doubly bonded to an oxygen atom. [pic] Both molecules have a carbonyl group‚ the difference the number of carbons bonded to the carbonyl carbon. An aldehyde will have none or one and a ketone will have two carbons. All aldehydes‚ except formaldehyde‚ will have a hydrogen atom on one side of the carbonyl carbon and at least on carbon on the other side
Premium Oxygen Alcohol Carbonyl
CM8002 Drugs Saferstein Chapter 8 Drugs Natural Used since ancient times‚ mostly by “medicine men” Semi-synthetic Modified natural compounds Synthetic Misuse of pharmaceutical results Abuse of solvents Physical and Psychological addiction www.cnb.gov.sg www.dea.gov Drugs “The fly agarics are dried and eaten in large pieces. After about half an hour‚ the person becomes completely intoxicated and experiences extraordinary visions. CO2H O Those who cannot afford the
Premium Pharmacology Medicine Drug addiction
Co.‚ 2008 Quiz-Lecture 23 Question 4: What are the products of reaction 6 of the citric acid cycle (which starts with succinate) A)Fumarate B) Fumarate and FADH2 C) Fumarate and NADH D)Oxalaccetate and NADH Fumarase © W.H. Freeman & Co.‚ 2008 Quiz-Lecture 23 Question 5: What kind of reaction happens in the 7th step of the citric acid cycle (fumarate to L-malate)? A)Decarboxylation B) Addition of water C) Reduction of NAD+ to NADH D)A and C Malate dehydrogenase © W.H. Freeman
Premium Citric acid cycle
The Public Relationships between McDonald and Society McDonald’s is a gigantic fast-food multinational group‚ with approximately 30‚000 branches among 100 countries in six continents around the world. And its fame‚ as we all know‚ is not come from nothing. Since 1948‚ McDonald has been well renowned for its hamburgers‚ French fries‚ fried chicken‚ soft drinks‚ salad‚ etc (Ray‚ A‚ K‚ 1977). By the year 1972‚ when McDonald’s asset reached 1 billion dollars‚ the company began its first step in allocating
Premium Nutrition Fast food
Name: __________________________________ ( ) Class: 4Q HWA CHONG INSTITUTION PRELIMINARY EXAMINATION 2010 CHEMISTRY 5072 Paper 1 Time: 1 hour INSTRUCTIONS TO CANDIDATES Do not turn the pages over until you are told to do so. Write your name and index number on the answer sheet in the spaces provided. There are forty questions on this paper. Attempt all questions. For each question‚ there are four possible answers labelled A‚ B‚ C and D. Choose the one you consider correct and
Premium Ammonia Chlorine Sodium chloride
were removed and the plate wells were washed with Phosphate buffered solution. Briefly‚ 50 IL of 2 mg/ml MTT and 150 IL culture medium were added to each well. The cells were incubated at 37 °C and 5% Co2 for 4 h. Then the media was discarded and dimethyl sulfoxide and Sorenson buffer was added to each well as solubilizer buffer. Finally‚ absorbance was read using an ELISA plate reader (BioTeck‚ Bad Friedrichshall‚ Germany) at 570 nm
Premium Wound Wound healing Healing