The Effect Of Metoprolol On The World Health Organization 's List Of Essential Medicines Essay

I. LIQUID - Identification of an Unknown Liquid: Using the physical properties of Solubility, Density, and Boiling Point.

Melting Point Data Table Compound Aspirin Caffeine Salicylamide Actual MP (ºC) 93 - 98 260 - 262 96 - 102 Expected MP (ºC) 135 236 140 Percent Error (%) ~30% ~12% ~30%

The mixture was transferred to an ice bath to crystallize the product, after which the product was collected by vacuum filtration on a Hirsch funnel, washing the flask with small aliquots of cold xylene and pouring the solution over the crystals, allowing the vacuum to thoroughly dry the product. Additional drying was achieved by transferring the product to filter paper and pressing the crystals to remove any excess moisture. The product was then weighed and a melting point determined. A comparative TLC was run in Hexanes:Ethyl Acetate solvent against maleic anhydride to verify the purity of the

In determining the melting point range of the aspirin, a capillary tube (sealed at one end) was one-third-filled with the dried aspirin. The capillary tube and a thermometer were immersed in an oil bath. The temperature at which the solid started to melt and the temperature when the entire sample was completely liquefied were recorded as the melting point temperature range.

4- chlorobenzoic acid which was the aqueous layer has a theoretical melting point of 240-243°C, the organic layer, 4-chlorobenzyl alcohol has a theoretical melting point of 68-71°C. During our experiment we were unable to collect any data for the organic

6. The solubility of the solids were tested using a micro tray, by placing them in water and oil to observe their polarity,

What is its melting point? 1,405 K: 1,132 C: 2,070 F. boiling point? 4,404 K: 4,131 C: 7,468 F

Discussion: As seen in the melting point determination, the average melting point range of the product was 172.2-185.3ºC. The melting points of the possible products are listed as 101ºC for o-methoxybenzoic acid, 110ºC for m- methoxybenzoic acid, and 185ºC for p- methoxybenzoic acid. As the melting point of the sample

Purpose: The purpose of this laboratory was to gain an understanding of the differences between the freezing points of pure solvent to that of a solvent in a solution with a nonvolatile solute, and to compare the two.

If combined with adrenergic stimulating drugs used for treating asthma, ex. albuterol the adrenergic blocking effects of labetalol may counteract the effects of the stimulating drugs and reduce their effectiveness for treating asthmatic attacks. More of the adrenergic drug may be needed.

The growing non-medical use of prescription drugs is a global health concern. Such usage can be defined as the taking of prescription drugs, whether obtained by prescription or otherwise, other than in the manner or for the reasons or time period prescribed, or by a person for whom the drug was not prescribed. The real scale of the problem is unknown, due to lack of data on the non-medical use of prescription drugs, and to the existence of many gaps in the monitoring of their legal use for medical purposes as pre-scribed by health-care professionals (which creates chances for these drugs to be in the hands of people who they were not prescribed). Most studies on and monitoring instruments for substance abuse pertain to the use of illegal

Melting range would be closely related to a mixed sample whose constituents are most identical. In other words, melting point will have a wide range and would be below 200°C and above 95°C.

Solubility: soluble in methanol, slightly soluble in water (13.4 mg/ml) and very slightly soluble in dichloromethane

It is a white to pale yellow-translucent soft mass. It is tasteless and odorless. It is soluble in benzene, chloroform, carbon disulfide, hexane, ether and most fixed and volatile oils but it is practically insoluble in acetone, hot or cold 95% ethyl alcohol, glycerin and in water (84).It is a white to pale yellow-translucent soft mass. It is tasteless and odorless. It is soluble in benzene, chloroform, carbon disulfide, hexane, ether and most fixed and volatile oils but it is practically insoluble in acetone, hot or cold 95% ethyl alcohol, glycerin and in water

The objectives of this lab are, as follows; to understand what occurs at the molecular level when a substance melts; to understand the primary purpose of melting point data; to demonstrate the technique for obtaining the melting point of an organic substance; and to explain the effect of impurities on the melting point of a substance. Through the experimentation of three substances, tetracosane, 1-tetradecanol and a mixture of the two, observations can be made in reference to melting point concerning polarity, molecular weight and purity of the substance. When comparing the two substances, it is evident that heavy molecule weight of tetracosane allowed