Limited time offer 20% OFF StudySoup Subscription details

CHEM 1211 - Study Guide - Midterm

Created by: Sayali Punyarthi Elite Notetaker

CHEM 1211 - Study Guide - Midterm

School: Georgia Institute of Technology - Main Campus
Department: Chemistry
Course: Chemical Principles I
Professor: Angus Wilkinson
Term: Fall 2016
Tags: Chemistry
Name: CHEM 1211 Exam 1 Study Guide: Atoms to Quantum Numbers
Description: These notes cover six chapters of key points that will help review general chemistry to the specifics of elemental chemistry.
Uploaded: 09/19/2016
This preview shows pages 1 - 2 of a 3 page document. to view the rest of the content
background image Chemistry Exam 1 Study Guide 
CHAPTER 2: Atoms, Molecules, and Ions
A scanning tunneling microscope can be used to show individual atoms of a larger 
compound. 
Atomic Mass Unit (amu): is considered the unit of mass used to show the mass of 
an atom at the atomic scale 
o The atomic weight is shown on the periodic table and is the average of the  masses of the different isotopes of the atom.  o An isotope is an atom with the same number of protons but a different  number of neutrons.  Avogadro’s number can be used to find the number of atoms or molecules in a 
mole of a certain element.  
o Avogadro’s number = 6.022 x 10 ^23 Moles can have different masses but still all use Avogadro’s number.  The molar mass of an element is the mass of the element per ever mole of that 
element. 
Covalent bond: when two atoms share electrons o Forms a molecule Ionic bond: when one atom takes electrons from another o Forms ions  Nomenclature: the cation (positive ion) is before the anion (negative ion) : the 
ending changes to –ide
o Roman numerals are used to name transition metals because they have  multiple oxidation states  o Pseudo-binary ionic compounds: metal + polyatomic ion Atom Economy:  o Chemical synthesis is when two different elements combine to make a  compound.  o Green Chemistry: More efficient reactions Less harmful starting materials Renewable resources Energy Conservation Reusable waster materials CHAPTER 3: MASS RELATIONSHIPS IN CHEMICAL REACTIONS Molecular level: chemical symbols represent the behavior of individual atoms and 
molecules 
Macroscopic level: gives rise to a set of measureable physical properties 
representing the large-scale behavior of atoms and molecules 
Must balance chemical equations.  Molecular weight: sum of all atomic weights of all the atoms o Formula weight: sum of atomic weights of all atoms in a formula unit  Theoretical Yield: is found assuming the reaction goes to completion through 
mathematical calculations
o Actual yield is what is obtained through experimental basis. 
o Percent Yield: the comparison of the actual yield to theoretical yield 
(actual yield/percent yield) * 100
background image When finding the amount of product formed, keep an account of the limiting 
reactant as it determines the product produced. 
Types of Equations o Empirical:  the simplest whole-number ration of atoms
o Molecular: the actual ration of atoms in an element 
Mass percent compares the total mass of each element to the mass of the entire 
compound 
Greenhouse gases absorb radiation emitted from the Earth o Causes the atmosphere to heat up  CHAPTER 4: REACTIONS IN AQUEOUS SOLUTIONS Molarity = the number of moles for ever liter of solution  Dilution – the concentration of a solution decreased by an addition of a solvent  o Moles of solute do not change Electrolyte: substance that has ions that dissociate in an aqueous solution Non-electrolytes: does not form ions in a solution  Precipitation Reaction: result in a solid, due to a compound being insoluble  o Based off of solubility rules Acid-base neutralization reactions: when an acid reacts with a base to form water 
and a salt 
Total ionic equations: shows all the ions present that have dissociated or bonded to
form a solid
Net Ionic equations: only shows the ions used to form the precipitate in the 
reaction 
o Takes away the spectator ions that do not come into use when making the  precipitate  Soluble substances dissolve in water; insoluble substances do not  The mole ratio is used to correlate the amount of one substance to another in a 
chemical reaction 
CHAPTER 5: PERIODICITY AND THE ELECTRONIC STRUCTURE OF ATOMS Color emitted is due to the electron moving from different energy levels in an 
atoms
o Light is a form of electromagnetic radiation, which consists of electric and  magnetic fields  o Light transfer energy from one region of space to another  Characteristics of light:  o Amplitude, Intensity, Wavelength, frequency  The color of the light depends on its wavelength and frequency All light has the same velocity: 3.00 x 10^8 m/s Max Planck: the exchange of energy between matter and radiation occur in 
QUANTA or packets of energy 
Photoelectric Effect: an electron can only be ejected from a photon if the photon as
a large enough threshold frequency
o Increasing the intensity increases the number of electrons ejected 
o Photoelectron spectroscopy: to determine energy of electrons on shells of an 
atom  Both photons and electrons behave like a particle and a wave- wave-particle 
duality 

This is the end of the preview. Please to view the rest of the content
Join more than 18,000+ college students at Georgia Institute of Technology - Main Campus who use StudySoup to get ahead
3 Pages 26 Views 20 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join more than 18,000+ college students at Georgia Institute of Technology - Main Campus who use StudySoup to get ahead
School: Georgia Institute of Technology - Main Campus
Department: Chemistry
Course: Chemical Principles I
Professor: Angus Wilkinson
Term: Fall 2016
Tags: Chemistry
Name: CHEM 1211 Exam 1 Study Guide: Atoms to Quantum Numbers
Description: These notes cover six chapters of key points that will help review general chemistry to the specifics of elemental chemistry.
Uploaded: 09/19/2016
3 Pages 26 Views 20 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join StudySoup for FREE
Get Full Access to gatech - CHEM 1211 - Study Guide - Midterm
Join with Email
Already have an account? Login here
×
Log in to StudySoup
Get Full Access to gatech - CHEM 1211 - Study Guide - Midterm

Forgot password? Reset password here

Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here