AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

CNote

pKa Chemistry Lab Report

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Equilibrium chemistry
Acid dissociation constant
PH
World Wide Web
CNote
Technology

Pre Lab Questions: 1. H3PO4 + H20 ( H30+ + H2PO4- Ka1 = [H2PO4-][ H30+]/[ H3PO4] pH = pKa1 ??+ log [A-]/[HA] pH = -log( 7.5 x 10-3) + log (1) pH = -log( 7.5 x 10-3) pH = 2.12 Methyl Red would not be a proper indicator because the color change of this titration occurs between the pH?s of 4 and 5. The pH of the indicator should be close to the pH of the equivalence point. The indicator should change color at a pH of around 2.12, therefore, Orange IV would be the indicator to use since it changes from Orange to Peach at around a pH of 2.5. Results & Data: Experiment Table Unknown Trial pH pH (average) pKa Unknown ID C Sample #1 6.76 6.76 6.76 KH2PO4 Sample # 2 6.76 Table of Unknowns Acid Formula Ka of Conjugate Acid pKa

AP Chemistry - Brown & Lemay Text

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Human–computer interaction
Information Age
World Wide Web
CNote
Film
Animation
Humanities
Tags: 
periodicity; magnetism; Coulomb's Law; energy

Lexi Eyerman ? AP CHEM SUMMARY 29 Sept. 2011 AP CHEMISTRY: UNIT 2 [pgs. 198-273, chapters 6-7] Scientific Laws, Theories, and BIG Ideas The Wave Nature of Light Electromagnetic Radiation ? energy carried through space (ex/ light) Dual-nature of Electrons & Photons Quantized Energy: Planck?s Constant (see Equations section); only a certain fixed quanta of energy is emitted (one/ a few fixed wavelengths) Photoelectric Effect: light can be particle-like (photons) Electrons have energy and frequencies associated with them and require a certain quanta of energy to change energy levels. Electrons Energy is negative and becomes less negative as you go outward Writing electron configurations: n = size of path (Principle Quantum Number, a.k.a. P.E.L)

AP Chemistry - Brown & Lemay Text

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Human–computer interaction
Information Age
World Wide Web
CNote
Advanced Placement Chemistry
Film
Animation
Humanities
Tags: 
Lewis Dot Structures; formal charges; bond enthalpy; VSEPR theory

Lexi Eyerman ? AP CHEM SUMMARY 17 Oct. 2011 AP CHEMISTRY: UNIT 3 [pgs. 274-363, chapters 8-9] Scientific Laws, Theories, and BIG Ideas Chemical Bonds Ionic: electrons transfer; metals and nonmetals; exothermic (violent reactions); stable compounds; lattice energy ? energy to separate a mole of solid ionic compound into a gas (explained by Coulomb?s law) Covalent: electrons share; nonmetals; weaker bonds with low m.p. Metallic: sea of mobile electrons; good conductors of electricity; malleable and ductile Bond Polarity and Electronegativity Nonpolar Covalent: e- are equally shared; diatomic elements (no dif. in electronegativity) Polar Covalent: e- are unequally shared; dif. in electronegativity More electronegative atom is slightly negative in a bond

home burial

Subject: 
Algebra
Rating: 
0
No votes yet
SocialTags: 
Digital media
Human–computer interaction
Information Age
World Wide Web
Internet
CNote
Humanities
Technology

Political: By 1614 he had a reputation as a good speaker and administrator so Marie de Medici rewarded him by bringing him to the royal court in 1615. The royal favourite, Concini, also believed that Richelieu was talented and had him appointed Secretary of State for War and Foreign Affairs. When concini was murdered he and marie de medici were exiled by the king in 1617 In 1622 Richelieu negotiated with king Louis 13 to reconcile with his mother marie de medici and bring them both back to the royal court. in April 1624, Richelieu was given a seat on the Royal Council and in August 1624, was made Chief Minister.

Pages

Subscribe to RSS - CNote

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!