Polymerization reaCTIONS polymers are high-molecular-weight compounds‚ fashioned by the aggregation of many smaller molecules called monomers. Ex. plastics that have so changed society and the natural and synthetic fibers used in clothing are polymers. Classification of polymers Homopolymers - consist of repeated long chains or structures of the same monomer unit. Ex. PVC(polyvinyl chloride) Copolymers - polymers that consist of more than one molecule. Trimers - molecules consisting
Premium
Complexometric Determination of Water Hardness Kayla Partridge Britni Gonzales 09/15/2014 Abstract Determining the water hardness of unknown sample #55 was determined by complexometric titration. With the use of disodium salt EDTA as the solution to chelate the metal impurities and the Eriochrome Black T indicator as the solution used to help visualize when the impurities were completely chelated‚ along with a few other solutions to help the reaction. Unknown water sample #55 experimental
Premium Calcium Water Hard water
ENGINEERING Reaction Engineering CGC035 / CGC052 Problem Sheet 3 - Fluid-fluid reactions 1. The reaction rate for the heterogeneous reaction A(g) + B(l)→ products is second order according to the expression -rA=kCACB and it is relatively slow compared to mass transfer so it takes place in the bulk of the liquid. Combine the following rate expressions for diffusion through the gas and liquid films‚ -rA=kAga(pA-pAi) and -rA=kAlaCAi-CA‚ with Henry’s law pAi=HACAi and the reaction rate
Premium Chemical reaction Chemical engineering Chemistry
Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
Free Chemical reaction Hydrogen Chemistry
Canada was about determination. Julilly always had determination even in the worst of times. When Julilly was taken away from her mother she still had the determination to be free. Also when she was being beat at the Riley Plantation she still had the determination to be free in Canada. Even when Julilly found out her friend had died she still had the determination to be free. Throughout all the times where it seemed that nothing could go worse she still found the determination to escape‚ to become
Premium Family Woman Mother
Work from home new mantra for IBM employees The last time Kumar‚ a sales executive working with IBM India‚ visited his company’s registered office in Bangalore was some six months ago to get his broken attendance card replaced. Kumar‚ 35‚ is among nearly 50‚000 IBM India employees who are working from anywhere‚ but the office. "I do not have to show my face to my boss anymore‚ well at least for a few weeks or months at a stretch‚" says Kumar‚ who requested that his first name not be revealed. "I
Premium Telecommuting IBM
Amanda Dundee BEANO CASE QUESTIONS 1. Harris’s partnership proposal is not fair for Smith. He completely revised the original investment amount and loan deal that they had original discussed. He is asking to raise his share to 49%‚ which would pose many problems for Smith in the control of the company. Giving Harris that high of a stake in the franchise would be giving him a lot more money‚ and half of the control. Smith would be dependent on Harris‚ and if something suddenly happened to
Premium Franchise Cash Cash flow
Everyone has different stress triggers. Work stress tops the list‚ according to surveys. Forty percent of U.S. workers admit to experiencing office stress‚ and one-quarter say work is the biggest source of stress in their lives. Stress is actually a normal part of life. At times‚ it serves a useful purpose. Stress can motivate you to get that promotion at work‚ or run the last mile of a marathon. But if you don’t get a handle on your stress and it becomes long term‚ it can seriously interfere with
Free English-language films Time Economics
Name Lab Section GTA Station 1. Grignard Reaction Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table. Also‚ attach the benzophenone and product spectra. Indicate appropriate stretches including differences in both spectra. Results | | Amounts and units | |Initial
Premium Infrared Nucleophile
Reaction Time Reaserch Question: To design on investigation into stimuli ( sight/sound ) that may affect reaction time ( time taken for a response to occur in reaction to a stimulus.) Background information: Humans perceive their outside world through five senses: touch ‚sight‚ taste‚ smell and sound. The reason why we have the 5 major senses is to detect and discriminate among the signals that comes from our environment. These signals carry information necessary for us to support our vital
Premium Brain Human brain Visual perception