EXPERIMENT I Photoreduction of Benzophenone Introduction The study of chemical reactions‚ isomerizations and physical behavior that may occur under the influence of visible and/or ultraviolet light is called Photochemistry. The fundamental principles for understanding photochemical transformations are that light must be absorbed by a compound in order for a photochemical reaction to take place‚ and that for each photon of light absorbed by a chemical system only one molecule is activated for
Premium Oxygen Sunlight Electromagnetic radiation
Chemotherapeutic Agents of Control: Introduction: Chemotherapeutic agents are chemical substances used to treat various forms of infectious diseases. The chemotherapeutic agent works by stopping the bacteria from reproducing. There are two different kinds of chemotherapeutic agents. The first kind is an antibiotic‚ which slow down the growth of microorganisms. The second kind of chemotherapeutic agent is synthetic drugs. Synthetic drugs are artificially made in a laboratory. Chemotherapy
Premium Bacteria
Data collection Quantitative Data Raw Data Table 1: Table showing the mass of the amount of unknown acid X measured in grams (±0.001g) Table 2: Table of reading of the burette initially filled with 25mL of 0.201moldm-3 sodium hydroxide (NaOH) to titrate 25mL (±0.03mL) of unknown acid X in mL (±0.05mL) after each titre. Reading on the burette initially filled with 25mL of 0.201moldm-3 NaOH (±0.05mL) First titre 21.3 Second titre 18.2 Third titre 15.2 Fourth titre 12.0 Qualitative
Premium Acid Sodium hydroxide Solubility
ENG 4UI: ISU Essay Outline ----------------------- Introduction: All life and existence makes an unavoidable journey towards an ultimate end. Immortality is a mythical unattainable existence‚ barred by the presence of entropy. Mortality is a constant found in everything that was‚ is and will be. Hook:
Premium Philip K. Dick Do Androids Dream of Electric Sheep? Blade Runner
Title: Spectrophotometer and its function Name: Ooi Shu Chien Student ID: 00000014507 Objective: 1. To determine the wavelength of maximum absorption‚ Amax of bromophenol blue. 2. To construct a standard concentration curve for bromophenol blue. 3. To determine the concentration of the unknown bromophenol blue solutions. 4. To determine the concentration of two different solutes‚ bromophenol blue and methyl orange‚ in
Premium Solution Curve Concentration
Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes. After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed
Premium Chemistry Water Solvent
GENERAL ARTICLE CHILE: An Evidence-Based Preschool Intervention for Obesity Prevention in Head Start SALLY M. DAVIS‚ PhDa SARAH G. SANDERS‚ RN‚ MSb COURTNEY A. FITZGERALD‚ MSSW‚ LMSWc PATRICIA C. KEANE‚ MS‚ RD‚ LDd GLENDA F. CANACA‚ MDe RENEE VOLKER-RECTOR‚ BAf ABSTRACT BACKGROUND: Obesity is a major concern among American Indians and Hispanics. The Child Health Initiative for Lifelong Eating and Exercise (CHILE) is an evidence-based intervention to prevent obesity in children enrolled
Premium Public health Health care Health
CHEMISTRY INVESTIGATION ‘HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?’ SANIA HUSSAIN CANDIDATE NUMBER:5093 Contents The aim – PG 1 Introduction – PG 1 Theories – PG 1‚ 2 Prediction – PG 2‚ 3 Safety – PG 3 Strategy – PG 3‚ 4 Method – PG 5‚ 6‚ 7 Preliminary – PG 7 Actual experiment and graphs – PG 7+ Chemistry coursework Hypothesis/Aims The aim of the investigation is to see how different concentrations of hydrochloric acid affects the rate at which
Premium Chemical reaction Reaction rate Magnesium
Separation of the Components of a Mixture General Chemistry 1 (Chem 101)‚ ISP SCUHS Report 2 January 26‚ 2014 Abstract The analyses of mixture were to distinguish and identify homogeneous mixture by using the techniques of decantation and sublimation. By performing these techniques‚ we examined our solutions such as SiO2 (sand)‚ NH4Cl (ammonium chloride)‚ and NaCl (sodium chloride) and mixed H2O (water) with each solution after being heated. After examining our solutions‚ we made calculations
Premium Mixture Separation process Liquid
Formal Lab Report Format A properly written formal lab report in CHEM 123L consists of the following sections: Cover Page Give your experiment a good‚ descriptive title Include the date‚ your name‚ ID#‚ TA’s name and partner’s name and section # Introduction and / or Purpose Introduce the background material your reader will need to understand the experiment and all parts of your report. Summarize the underlying theory of the experiment and any equations you will use. Identify the purpose
Free Scientific method Experiment Reference