The Effect of Different Molar Mass on the Diffusion on Substances Lunar-maius A. Gaerlan Group 2 Sec. X – 9l August 15‚ 2012 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using agar-water gel test. The agar-water gel set up was composed of a petri dish of agar-water gel containing three wells. Drops of potassium permanganate (KMnO4)‚ potassium dichromate (K2Cr2O7) and methylene blue(C16H18N3SCl) were simultaneously introduced to each well. Methylene blue
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Resolution of Matter into Pure Substances – Paper Chromatography Abstract The purpose of this laboratory was to determine how different substances have different solubilities in a given solvent. This was accomplished using the method of chromatography. The solubility of each substance was first determined by dropping a drop or two of each on a line drawn 2 inches above the bottom of a piece of paper. Then the paper was lightly bent in order to tape both sides of the paper leaving about a 4 centimeter
Free Solubility Chemical substance Sodium chloride
will recover them into their salt forms and then purify them by recrystallization and identify them by their melting points. Procedure: Extraction of Carboxylic Acid A pre-weighed (0.315g) mixture of Carboxylic acid‚ a phenol‚ and neutral substance was placed into a reaction tube (tube 1). tert-Butyl methyl ether (2ml) was added to the tube and the solid mixture was dissolved. Next‚ 1 ml of saturated NaHCO3 solution was added to the tube and the contents were mixed separating the contents into
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Testing the pH of Common Household Substances Lab Background Information: The pH scale is used to determine the acidity or basicity level of liquid solutions. If a solution scores a pH level of 1-6 it is an acidic solution‚ 1 being the most acidic and 6 being the least acidic. If a solution rates a pH level of 7 it is a neutral solution‚ meaning it is neither an acidic nor a basic solution. Lastly‚ if a solution is 8-14 on the pH scale it is a basic solution‚ 8 being the least basic and 14 being
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Case Management Special Populations – Substance Abuse This paper will consider information illustrating the fact that there are many special populations that have a real need for services from social agencies. A special population can be explained as a group of people that need assistance in order to function and have as normal and productive quality of life as possible. They are unable to do this on their own because of a disability or deficiency that creates a disadvantage not necessarily
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The Effect of Molecular Weight on the Diffusion Rate in Substances Nadjah B. Hadji Amer Gladys A. Oliveros Rochelle R. Yaῆez Jan Remon B. Caliguid Group 2- Sec. W78-1 August 14‚ 2013 A scientific paper submitted in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri
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search for a drug dominates an individual’s life. An addict eventually develops tolerance‚ which forces the person to consume larger and larger doses of the drug to get the same effect. Addiction is a condition that results when a person ingests a substance (e.g.‚ alcohol‚ cocaine‚ nicotine) or engages activity (e.g.‚ gambling‚ sex‚ shopping) that can be pleasurable but the continued use/act of which becomes compulsive and interferes with ordinary life responsibilities‚ such as work‚ relationships‚
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The Controlled Substances Act (Marijuana Prohibition) CLN-4U Unit One Essay Cailey Bazik CLN 4U – Unit One Essay Controlled Substances Act Marijuana Prohibition The Controlled substance act pertaining to Marijuana has been a long on going battle as to whether marijuana should be legal in Canada and taken out of this act. The law behind the drug has a long history and many failed attempts at decriminalization. There are both positive and negative effects to this law‚ but I believe the
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10/18/2011 Philosophy 235 The Ethical Implications of Involuntary Treatment for Substance Abuse Every time health professionals claim to speak for the rights of others many questions arise within the bioethical community. Although altruism is a motivating mechanism of selfless care for others‚ it may have a dark side. Involuntary treatment for alcohol and drug abuse is a controversial tool used in medical care. The question of whether or not such treatment can be applied has been an unresolvable
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We will be adding different substances such as table salt‚ citric acid‚ and sugar. The scientist’s problem statement is “What kind of substances make gel the strongest?” The independent variable will be the different additives (Table salt‚ citric acid‚ and sugar) which will be added using tablespoons. The dependent variable is the strength of the gel which will be measured using a scale of 10. The constant variable is the type of gel used and the amount of substance added to the gel which will be
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