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by: Cole White IV

IntrotoChemicalPrinciples CHEM40

Marketplace > City College of San Francisco > Chemistry > CHEM40 > IntrotoChemicalPrinciples
Cole White IV

GPA 3.99


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Class Notes
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This 1 page Class Notes was uploaded by Cole White IV on Monday October 5, 2015. The Class Notes belongs to CHEM40 at City College of San Francisco taught by Staff in Fall. Since its upload, it has received 24 views. For similar materials see /class/219530/chem40-city-college-of-san-francisco in Chemistry at City College of San Francisco.


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Date Created: 10/05/15
What should I know already Many students mistakenly believe that Chem 101A is an introductory course one that can be taken without having taken any chemistry courses in the past This is not the case At a minimum you should be familiar with the following information already Familiar means that you should be able to answer questions about these topics with a minimum of review no more than 10 minutes for any one topic Do not expect to be able to spend time reviewing these basic concepts during Chem 101A we will expect you to know and use this material from the very beginning of the course 39 The basic structure of the atom protonsneutrons electrons how many where they are 39 What a mole is how to interconvert grams and moles and the significance of Avogadro s number How to recognize whether a chemical equation is balanced and how to balance a simple chemical equation How to deal with molarity using any two of the mass of solute the volume of solution and the molarity to calculate the third How to use a balanced equation to interrelate masses and numbers of moles of the chemicals in the reaction A typical example if you use 5 moles or 5 grams of chemical X how many moles or grams of chemical Y will you make 39 The difference between an ionic and a covalent bond and the manner in which each type of bond is formed 39 How to write the formula of an ionic compound if you know the formulas and charges on the constituent ions for instance what is the formula of ammonium sulfide given that ammonium ion is NH4 and sulfide ion is 82 You should also know the names and symbols for common elements and ions A representative list is on the back of this sheet You need not know ALL of these but you should know MOST of them We are also assuming that you are familiar with the significant figure rules for arithmetic calculations although you can leamreview these during the early part of the semester If you have not learned one or more of the above topics you should seriously consider enrolling in Chem 40 even if you qualified for Chem 101A based on the placement test Passing the placement test does NOT mean that you will pass Chem 101A We set the placement test cutoff at the point where students who scored below the cutoff were guaranteed to fail Chem 101A the test only screens out those students who have no realistic chance of passing the course If you know more chemistry than this good for you The more you already know the easier you will find Chem 101A We will cover topics such as gas laws heats of reaction atomic orbitals Lewis dot structures and so forth in detail in Chem 101A but these are also covered in most introductory courses including our Chem 40 and prior knowledge of them is very helpful


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