Kinetics Kinetics 6.1 Rates of reaction 6.2 Collision theory 6 16.1 Rate Expression (AHL) 16.2 Reaction mechanism (AHL) 16.3 Activation energy (AHL) 6.1 Rates of reaction 6.1.1 Define the term rate of reaction. 6.1.2 Describe suitable experimental procedures for measuring rates of reactions. 6.1.3 Analyse data from rate experiments. © IBO 2007 Figure 601 An explosion is a quick reaction D ifferent chemical reactions occur at different rates (i.e. speeds)
Free Chemical reaction Chemical kinetics Reaction rate
(AMD) problems are the most important environmental problems in sulphide mines especially mines which contain pyrite. Oxidation of sulphides in contact with air and water produces sulphuric acid which reduces the pH of water. The result of these reactions is increase in the solubility of heavy metals and consequently pollution of water resources. The Sarcheshmeh copper mine is one of the largest porphyry copper mines in the world which is located in south-eastern Iran. Chemical analysis of over than
Premium Mining Water Hydrology
Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction: The student will perform the experiment in order to find the percent yield by using the theoretical value found using the balanced equation for sodium carbonate as well as sodium bicarbonate. The objective is to stabilize the substances by titrations and finding the percent yield when all the data is collected. The purpose of this procedure is so that the student will get better understanding of stoichiometry. The student
Premium Hydrochloric acid Sodium carbonate Sodium
Subject: Chemistry SL Title: Preparation of a salt (lead iodide) by using precipitation method. Aim: To produce 1.50 g of lead iodide‚ PbI2‚ assuming 100 % conversion‚ using 1.00 g solid potassium iodide‚ KI‚ and 0.1 M lead nitrate‚ Pb(NO3)2 solution of volume 30 cm3 and hence calculate percentage yield. Calculations: 2KI(s) + Pb(NO3)2( aq) —> PbI2 (s) + 2KNO3 (aq) Mass of PbI2 to be produced = 1.5 g Moles of PbI2 = = 0.003 Moles of KI = 0.003*2 = 0.006 Mass of KI = 0.006*166 = 1.00 g
Premium Mass
Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper
Premium Copper Sulfuric acid Zinc
01_anthrax.pdf http://ahd.kerala.gov.in/index.php/livestockdiseases?start=3 http://www.who.int/csr/resources/publications/anthrax/whoemczdi986text.pdf http://books.google.com.ph/books?id=EKYihvnaA7oC&pg=PA136&lpg=PA136&dq=ascoli%E2%80%99s+thermo+precipitation+test+procedure&source=bl&ots=EghgCCoqbO&sig=t0pQ_LpGC0HLOqsod228WGWYP5k&hl=en&sa=X&ei=tF4bUZ7xIsftrAf584CQBw&ved=0CGIQ6AEwCA#v=onepage&q&f=false http://www.austincc.edu/microbugz/starch_hydrolysis.php http://www.microbelibrary.org/index.php?op
Premium Bacillus Bacteria
Acid precipitation affects stone in two ways: dissolution and alteration. The calcite dissolves when sulfurous‚ sulfuric‚ and nitric acids in polluted air react with the calcite in marble and limestone. Exposed areas of building and statues develop rough surfaces. Some of the material that makes them up are removed or corroded‚ thus‚ details and carvings are lost. Even sheltered areas of stone buildings and monuments are affected by acid precipitation. However‚ sheltered areas on limestone
Premium PH Sulfur Sulfur dioxide
distinctive coloured vapour. (ii) Forms a blue-black complex with starch and in biology the test is used to detect starch with iodine solution. Tests for Halide Ions In test (i) the silver nitrate is acidified with dilute nitric acid to prevent the precipitation of other non-halide silver salts. Test for halide ion Test method Observations Test chemistry and comments Fluoride Ion F- Fluoride and hydrogen fluoride gas are harmful‚ irritating and corrosive substances. (i) If the suspected fluoride is
Premium Chlorine Ammonia Sulfuric acid
Chemical Reactions Lab Objectives: 1. To examine a variety of reactions including precipitation‚ acid-base‚ gas forming‚ and oxidation-reduction reactions. 2. To identify the products formed in these reactions and summarize the chemical changes in terms of balanced chemical equations and net ionic equations. 3. To identify the species being oxidized and reduced in oxidation-reduction reactions and determine which species is the oxidizing agent and the reducing agent. Chemical equations represent
Premium Chemical reaction Chemistry Hydrogen
II. LEARNING OBJECTIVES - To perform different types of chemical reactions including acid-base‚ precipitation‚ gas forming‚ complex compound forming and oxidation-reduction reactions. - To identify some of the products in these reactions and describe the chemical changes. - To write and balance the chemical equations for the reactions observed. III. EQUIPMENT AND REAGENTS 1. EQUIPMENTThirty test tubes One test tube rack Two test tube holders Two spatulas Three 250 mL beakers One stirring rodOne
Premium Chemical reaction Chemistry Solubility