Introduction The purpose of this experiment is to practice common organic laboratory techniques inside the lab to get one oriented to the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form‚ consisting of benzoic acid‚ methyl orange‚ a common acid/base indicator‚ and cellulose‚ a natural polymer of glucose (Huston‚ and Liu 17-24). The technique that is used to perform this separation is called extraction
Premium Solvent Solubility
Experiment # 1 Date: 18/12/13 Title: Chemical Properties of Alkanes. Aim: To test the reactivity of alkanes using cyclohexane as an example. Apparatus/Materials: Cyclohexane‚ liquid alkane‚ aqueous bromine‚ test tubes‚ light source‚ watch glass‚ splint‚ 0.1 MKMnO4‚ concentrated H2SO4‚ dilute H2SO4. Method: Combustion: 1. A watch glass was placed on a benched protection sheet in a fume cupboard and the extractor in the fume on. 2. 4 drops of cyclohexane was placed on the watch glass using
Premium Standard deviation Laboratory glassware Sodium hydroxide
sulphate experiment Introduction There are a number of different methods of making salts‚ such as the reaction of a metal with an acid. Copper metal‚ however‚ does not react with sulphuric acid and so another method must be used. In this experiment a basic copper compound (copper(II) oxide) will be reacted with sulphuric acid giving copper(II) sulphate as one of the products. Method 1. Wear goggles and keep your face away from the beaker during the reaction 2. Place 20 cmm3 sulphuric acid into a
Premium Sulfuric acid Hydrogen Carbon dioxide
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
Premium PH Acid
Abstract In this experiment paper chromatography was used in order to identify two unknown amino acids using eight known amino ones. The two unknown ones were identified by comparing the distance they travelled up the chromatography paper and their Rf values to the corresponding values of the other eight known amino acids. The unknown amino acids identified were Glycine and Methionine. Introduction Proteins in cells are important in many ways. There are different types of proteins such as
Premium Amino acid
Concentration Camps in the Holocaust World War II brought many atrocities‚ 6 million to be precise (Wachsmann 2017). With so many camps not even discovered yet‚ as they are still doing an investigation into all of the locations of the camps‚ but we may not even know how many deaths and the torture of the prisoners by the Fuhrer and the Nazi’s. The Germans had many uses for the concentration camps. A concentration camp is a detention site outside the normal prison system created for military purposes
Premium Nazi concentration camps Auschwitz concentration camp
The Dreaded Story of Dachau A concentration camp refers to a camp or closed area where people are detained under brutal conditions usually having no access to legal rights of arrest and imprisonment that would normally be accepted in a democracy. Concentration camps played a large part in the mass killing of Jews in Europe lead by Adolf Hitler. An example of a concentration camp is Dachau. During the World War II‚ Jews were separated into two groups the healthy and the unhealthy. The unhealthy
Premium Mind English-language films Thought
Ksp of Calcium Hydroxide by Titration of Saturated Ca(OH)2(aq) with HCl(aq) Abstract: Titration is a technique that has been used in this experiment to identify the Ksp value of calcium hydroxide in order to determine the extent to which the compound is soluble in water. A known volume of 50 mL of hydrochloric acid‚ a concentration of 0.05 M hydrochloric acid‚ a volume of 50 mL calcium hydroxide base‚ an unknown concentration of base
Premium PH Titration PH indicator
Individual Investigation - Chemistry Relationship Between H3O+ Concentration and Red Cabbage Indicator Usage Introduction Figure 1: Red Cabbage and Natural Universal Indicator Colour Changes I have always been interested in environmental conservation and colourful ‚ and was one day transferred back to a particular day in the kitchen‚ as a young child‚ while observing my mother cook red cabbage (Brassica oleracea var. capitata f. rubra) coleslaw‚ which is naturally a rich purple in colour
Premium PH Chemistry Acid
The Holocaust was one of the world’s worst genocides; concentration camps were the worst place to be if you were a captive. Adolf Hitler‚ a Nazi‚ convinced many that certain groups of people needed to be exterminated. He started concentration camps to terrorize his enemies. The first concentration camps started in 1933‚ six years before World War Two began. There were several concentration camps. These concentration camps consisted of European Jews‚ P.O.W.’s (Prisoners of War)‚ political prisoners
Premium Nazi concentration camps Auschwitz concentration camp Extermination camp