External link to Understanding The Stereochemistry Of Organic Compounds Environmental Sciences Essay

Understanding The Stereochemistry Of Organic Compounds Environmental Sciences Essay

Stereoisomers are defined as molecules of indistinguishable atomic composings ( molecular expression ) , but with different adhering agreements of atoms or orientation of their atoms in infinite. Based on this definition, several types of isomerism are possible including constitutional, configurational, and conformational isomerism. Constitutional isomers ( besides called structural or positional isomers ) are molecules with the same atomic composing but different adhering agreements […]

External link to Chemistry Lab Critique Essay

Chemistry Lab Critique Essay

In this lab, the pKa of the unknown indicator of expression was determined both qualitatively and quantitatively. To verify our procedures, the experiment was tested using a known indicator, bromocresol green. Qualitatively, we used the color change of the solution with an indicator to obtain the pKa value solely using a pH meter. Quantitatively, we used a pH meter and the spectrophotometer with varying concentrations […]

External link to Chemistry and Confidential Instructions

Chemistry and Confidential Instructions

O Level Chemistry (5070) Frequently Asked Questions Can my candidates take a dictionary / calculator into the examination? Calculators can be used in all science papers and students should take a calculator, ruler, pencil, protractor and set of compasses into all science exams. Dictionaries are not allowed. My candidates did 0K last session but I would like advice on how to improve my teaching and […]

External link to Chemistry Advanced Level Examination

Chemistry Advanced Level Examination

SERANGOON JUNIOR COLLEGE General Certificate of Education Advanced Level Higher 2 CHEMISTRY JC2 Preliminary Examination Paper 1 Multiple Choice Additional Materials: Data Booklet Optical Mark Sheet (OMS) 9647/01 23 August 2011 1 hour READ THESE INSTRUCTIONS FIRST On the separate multiple choice OMS given, write your name, FIN/NRIC and class in the spaces provided. Shade correctly your class and FIN/NRIC number. Eg. If your NRIC […]

External link to Chemistry in Our Lives

Chemistry in Our Lives

“Better living through better chemistry” Chemistry affects our lives in many different ways, everyday. The air you inhale everyday is an element called hydrogen. Chemistry affects us in good ways and bad ways. So, I decided to do it in both points of view. Without chemistry our lives wouldn’t be as easy it is right now but there is a other side to it. Without […]

External link to Chemistry Study Guide

Chemistry Study Guide

Unit 18 B Study Guide Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1. 62e–5. A)1. 59e–2 B)2. 53e–2 C)6. 64e–17 D)2. 01e–3 E)2. 01e–2 The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said about the relative […]

External link to Cai in Chemistry

Cai in Chemistry

1 COMPUTER ASSISTED INSTRUCTION IN CHEMISTRY IN RELATION TO LEARNERS’ PERSONALITY Dr. R. Sivakumar Abstract The aim of this study was to find out the effectiveness of Computer Assisted Instruction in Teaching Chemistry In Relation To Learners’ Personality. The sample consisted of 40 students in Control group and 40 students in Experimental group. The data were collected using appropriate tools and it was analyzed by […]

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