Experiment Objective: To identify the components of an analgesic drug tablet and then correctly identify the tablet from a group of others with acquired data. Experiment Summary: In this experiment‚ we use TLC to identify components of an unknown analgesic drug. We prepare a solution of the drug by dissolving part of a tablet in 1:1 ethanol/dichloromethane‚ then spotting a TLC plate with the solution along with standard solutions of all active substances the drug tablet is likely to contain
Premium Aspirin Ibuprofen Paracetamol
by the Benedict’s test. (6 points) corn syrup (1 point) table sugar (1 point) unknown 1 (1 point) unknown 2 (1 point) unknown 3 (1 point) unknown 4 (1 point) List whether each of the following substances was positive or negative for starch‚ as indicated by using iodine. (7 points) onion juice (1 point) water (1 point) cornstarch (1 point) unknown 1 (1 point) unknown 2 (1 point) unknown 3 (1 point) unknown 4 (1 point) The Sudan III test has been performed for you. Please see the image
Premium Starch Carbohydrate Glucose
Introduction: The objective of this experiment is to utilize the techniques of weighing and titrating to determine the total amount of MgSO4 present in an unknown sample. Standardized EDTA will be used to titrate the unknown solution. This type of reaction is a complexation reaction‚ which usually involves Lewis acids and bases. EDTA in complexation reactions serves as a chelating ligand. The base‚ EDTA‚ will bind to the metal ions‚ which serve as the Lewis acid‚ thus playing a role as a ligand
Free Titration PH indicator Erlenmeyer flask
radiation emitted or absorbed by atoms and molecules. These studies are very helpful in determining an unknown element‚ given the fact that all elements burn a different color. The flame colors vary because of the different amounts of energy the elements give off. This lab is made for the learner to determine the identity of two unknown elements. Hypothesis If the color of one of the unknown elements is the same as one of the known elements‚ then they are the same element. Materials * Samples
Premium Sodium chloride Potassium Metal
Abstract: In this experiment‚ the specific heat and the density of an unknown metal was determined in order to identify the unknown metal. The average specific heat of the unknown metal was 0.197˚C and was determined using a calorimeter. The density of the unknown metal was 6.57 g/mL and was determined using a cylinder and displacement. Using the specific heat value of the unknown metal and its density‚ it was determined that the unknown metal was Tin. Introduction: The first law of thermodynamics states
Premium Thermodynamics Heat Energy
Workplace Drug Screening Opinion Paper PSY/325 March 15‚ 2005 Workplace Drug Screening Opinion Paper Drug testing is become increasingly popular tool used by business ’ today to weed out the potential employment candidate that may have drug problems. This testing does not determine whether a potential candidate has any issues with alcohol abuse‚ but will help a company determine whether or not the potential employee might be using other substances‚ such as prescription pills or
Premium Drug test Employment Drug addiction
then observe an unknown substance’s melting point to see if the points are the same and try to figure out the unknown. Experimental Section: The first known substance we used was Biphenyl. 68 degrees Celsius is the known melting point. We used the capillary method and observed the melting point using a Mel-temp device. The next substance whose melting point we observed was 90 % Naphthalene‚ 10 % Biphenyl. In the last part of the experiment I observed the melting point of Unknown E. After finding
Premium
and 2 unknowns (one liquid‚ one solid) react with 3 different solvents. To identify the two unknowns‚ testing needs to be done to find the density of both the liquid and the solid‚ determine the melting point of the solid‚ and the boiling point of the liquid. The Physical Properties of Pure Substances Table can then be used to compare the observed results with the accurate properties from the table. If testing is done correctly‚ accurate assumptions can be made to figure out what the unknown substances
Premium Chemistry Chemical reaction Chemical substance
in a bloody war with the Democratic Republic of Afghanistan‚ or the DRA (Unknown Author. (Unknown Date). Encyclopedia: Soviet invasion of Afghanistan. Retrieved April 4‚ 2004 from the World Wide Web: http://www.nationmaster.com/encyclopedia/Soviet-Invasion-of-Afghanistan.). This 10 year conflict caused massive amounts of destruction and mayhem for the country‚ but in the end was a military disaster (Unknown Author. (Unknown Date). Encyclopedia: Soviet invasion of Afghanistan. Retrieved April 4‚ 2004
Premium Soviet Union World War II Russia
(50%). Although this information is reported‚ the true composition of Panacetin is questionable. While sucrose and aspirin are present in Panacetin‚ Tylenol may be replaced by an unknown component (acetanilide or phenacetin). Separation of the components of a sample of Panacetin may prove valuable in identification of the unknown component‚ as well as the true percent composition of each component of Panacetin. This experiment involves two parts‚ covering a few required techniques to be learned
Premium PH Chemistry Hydrochloric acid