Production: Although Helium is one of the most common elements in the universe it is a rare gas on earth. It exists in the atmosphere in such small quantities (less than five parts per million) that recovering it from the air is uneconomical. Helium is produced as a by-product of the refining of natural gas, […]

Copper Blake Adams Period 3 Grade 8 2/5/97 Copper is a mineral. it is not a plant or a animal. Copper is a metallic metal. It can never be broken down into differnet substances by normal chemical means. Copper was one of the first metals known to humans. People liked it because in it”s native […]

For Informational Purposes Only. The authors & distributors do not advocate the use of illegal drugs and assume no liability for the use or misuse of this information . The procedures described are dangerous and should not be attempted by persons inexperienced in Organic Laboratory techniques. This formula is exemplified for MDA (3,4-Methylenedioxy- phenylisopropylamine); substituting […]

Aim: The aim of this investigation is to investigate the rate of reaction of magnesium (mg) with Hydrochloric acid (HCl). After studying the availability of equipment I have chosen to investigate how concentration can affect the rate of reaction. Other variables that affect this investigation are: – Concentration of solution – Temperature – Surface area […]

Gold’s magic number 20 August 2008 A new gold catalyst developed by UK chemists can catalyze hydrocarbon oxidation, using O2 as the only oxidant. But catalyst particle size is critical – above 2nm diameter, the catalyst loses all activity. The catalyst was developed by Richard Lambert and colleagues at the University of Cambridge, who used […]

Introduction: This lab will teach us how to identify several different substances that may be present in tap water and ocean water using different chemical tests. It will also show us the presence of solids in both tap water and ocean water. [img:88464c657d]//www.collegepimp.com/echeat/lab3.gif[/img:88464c657d] Balanced Equations: 9.Test Tube #3: a) Ca + CO3 -> CaCO3 b) […]

Introduction: In this experiment we will determine Avogadro’s number by calculating the area of a one-molecule thick layer of oleic acid. Because we know the volume of one molecule, we can solve for area. Then, we use density and the molar mass of oleic acid to find Avogadro’s number. Data: [img:73069628eb]//www.collegepimp.com/echeat/lab10.gif[/img:73069628eb] Discussion: The purpose of […]

Introduction: This lab will show us how we can use acid-base titration to find molecular formulas of compounds. Specifically, we will be working with Zinc, Calcium, Hydrochloric Acid, and Water. Data: [img:61fe0dee2e]//www.collegepimp.com/echeat/lab4.gif[/img:61fe0dee2e] Calculations: See notebook tear-out under “Calculations” heading Discussion: The purpose of this lab was to observe the reactions of metals with water and […]