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Exam 1 Study Guide

by: Julian Martin

Exam 1 Study Guide Chem 1411-322

Marketplace > Blinn College > Science > Chem 1411-322 > Exam 1 Study Guide
Julian Martin
Blinn College

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About this Document

Brief overview of all the information to pass the test. Assuming you are good at math and understand what questions are asking you to do then with this information you will do well on the test.
General Chemistry
Dr. Lizette Bartell
Study Guide
General Chemistry
50 ?




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This 3 page Study Guide was uploaded by Julian Martin on Sunday August 28, 2016. The Study Guide belongs to Chem 1411-322 at Blinn College taught by Dr. Lizette Bartell in Fall 2016. Since its upload, it has received 48 views. For similar materials see General Chemistry in Science at Blinn College.

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Date Created: 08/28/16
All Formulas    λ????=c  Wavelength(m)*Frequency(Hz)=C(speed of light)  Speed of light equals 3.00x10^8 or 2.998x10^8  This can be manipulated algebraically to get wavelength or frequency when provided with the  other in the question.    E=h????  Energy(J)=Planck's constant(J*s)*Frequency(Hz)  Planck’s constant is equal to 6.626x10^­34    E=hc/λ  Energy=(planck’s*Light)/Wavelength    λ=h/(mv)  Wavelength=planck’s/(mass*velocity)    ΔpΔx≥h/2π  mΔvΔx≥h/2π  Those two formulas are to calculate uncertainty  X is position  V is velocity  M is mass  P is mass times velocity  H is planck’s constant  2pi is 2pi (3.14….times 2)  Extensive properties change with the amount  If you extend the amount the property changes    Intensive properties do not change with the amount    Chemical changes change the identity of the substance  Chemical properties are found by changing the identity of the substance    Physical changes do not change the identity of the substance  Physical properties can be found without changing the identity of the substance    Orbitals  Remember:   When filling an orbitals always put 1 electron in each line before pairing them with each other.  (Hunds Rule)  Always make sure the orbital you are working with is completely full before moving onto the next  orbital. Work from the lowest to the highest. (Auphba Principle)  When you are filling the lines remember one arrow is up the other is down(the arrows represent  electrons)(Polly exclusion principle)    The Valence shell is the HIGHEST number not the furthest to the right number.  Orbitals go in this order.  Memorizing is one method to remember this  Or just remember that the first two columns are the s block  The metals are the d block  The last columns are the p block  The lanthanide and actinide series are the f block  The D’s are always one less  The F’s are always two less  1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 5d10…  This is a good example for the valence shell as 6s2 is the valence shell NOT 5d10  There are 2 electrons in this valence shell.  S   contains a maximum of 2 electrons  It can have one pair of electrons so it has only one line  P has a max of 6  It can have 3 pairs of electrons so it has 3 lines  D has a max of 10  It can have 5 pairs of electrons so it has 5 lines  F has a max of 14  It can have 7 pairs of electrons so it has 7 lines    Remember how conversion works:  Things that can trip you up when converting  1. If the unit is something squared or cubed remember you have to cancel out the unit that  number of times  2. If the unit is something over something else remember that that means one is on the  bottom and one is on the top  Here is an example of how to do it right when both of these pitfalls are present    14kg  10^3g  10^­2m  10^­2m  10^­2m  m^3  1kg  1cm  1cm  1cm    Algebra rule pitfall  c=a/b if you are trying to solve for b it is b=a/c not b=ac  You can only multiply to cancel the denominator not the numerator  Basically what you are doing is  c=a/b  Multiply both sides by b  bc=a  Divide both sides by c  b=a/c    Hurray!! that is basically everything you need to know summarized in a quick review  Good luck on the test.  (: 


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