supplied food acid is citric acid (triprotic) or tartaric acid (diprotic acid) Materials 4 x 100mL conical flasks 50mL burette rubber bulb 1 x 200mL beaker white tile retort stand 20mL volumetric pipette volumetric flask stopper 300mL distilled water marker 40mL 0.3M food acid burette clamp 0.1M sodium hydroxide magnetic flea magnetic stirrer glass funnel 1 x 200mL volumetric flask phenolphthalein 4 x 50mL beakers Method Part A: Making the food acid Place distilled
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Lloyd Term 2‚ 2014 Lauric Acid Experiment Teacher: Mr Oliver Contents 1.0 Introduction Elements and the compounds can exist in distinctive physical states. Liquid‚ solid‚ gas and plasma. Every element and compound has a distinctive melting and boiling point. When a substance reaches its melting and boiling point it will change phase. For example the molecules in a solid being heated gain energy and eventually are able to not only vibrate but
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Stereochemistry of Butenedioic Acid Objective: To study the interconversion of two geometric isomers‚ maleic acid (cis isomer) to fumaric acid (trans isomers)‚ the differences in physical properties between this pair of cis-trans isomers and determine the stereochemistry of addition of bromine to butenedioic acid. Chemicals and Apparatus: 2 grams of maleic acid‚ 10 cm3 of concentrated hydrochloric acid‚ 10 cm3 of bromine water[1]‚ one 50 cm3 beaker‚ one 100 cm3 beaker‚ one 250 cm3
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The type of acid was clearly controlled in the method. It clearly states that hydrochloric acid is representing the digestive chemical whilst the antacid tablets represent the food being digested. It is evident that the hydrochloric acid was the acid used in all aspects of this experiment successfully controlling this variable. It is not certain whether the amount of acid was controlled throughout the experiment. This is because the amount of acid was not clearly outlined neither
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ids Acids‚ Bases‚ Buffers and Respiration Darlene E. McDonald WCCC Fall 2012 Ap Lab 071-07 Dr. Roxanne Levandosky August 31‚ 2012 I. INTRODUCTION: A.PURPOSE: a. To define and understand the key terms. ~acid ~buffer system ~base ~acidosis ~pH ~alkalosis ~pH scale ~hypoventilation ~pH indicators ~hyperventilation b. To determine the acidic or base nature and actual pH of various substances. c. To discuss the formation of the carbonic acid/bicarbonate ion
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The study of urinary chemistry on stone forming minerals will provide a good indication of risk of stone formation. Urinary supersaturation with respect to stone-forming constituents is generally considered to be one of the causative factors in calculogenesis. Though supersaturation of stone forming salts in urine is essential‚ abundance of these salts by itself will not always result in stone formation. Various substances in the body have an effect on one or more of the stone forming processes (nucleation
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Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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original state and the percent of the hydrate recovered was calculated by using the mass of the rehydrated sample by the mass of the original hydrate and then multiplied by 100%. Data Presentation & Analysis Table 1: The data was collected from the lab experiment. Sample calculations are shown. Mass of beaker with sample 30.765g Mass of empty beaker 30.263g Mass of sample .502g Mass of beaker with sample after 1st heat 30.661g Mass of beaker with sample after 2nd heat 30.657g Heating mass
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Acid-Base Titration Pre-Lab Discussion In the chemistry laboratory‚ it is sometimes necessary to experimentally determine the concentration of an acid solution or a base solution. A procedure for making this kind of determination is called an acid-base titration. In this procedure‚ a solution of known concentration‚ called the standard solution‚ is used to neutralize a precisely measured volume of the solution of unknown concentration to which one or two drops of an appropriate acid-base
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Lab #28 Conservation of Mass Ashleigh Bublinec Serena Contreras
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