CHEM 1P80 Information Sheet Formulas and Constants

This sheet will be available to you for Midterm Exam #2 and for the Final Exam in CHEM 1P80
 
 

Formulas: Energy and Chemical Reactions, Chapter 6 Kotz and Treichel


 
 

Formulas: Atomic Structure, Chapter 7 Kotz and Treichel

Relation between energy E, wavelength lambda (l), and frequency nu (n):

E = hn = hc / l
Energy of an electron in the Bohr model of the hydrogen atom:
Important Constants (Hope your browser shows superscripts!)

Avogadro's number = 6.022 x 1023

Speed of light c = 2.998 x 108 m/s

Planck's constant h = 6.626 x 10-34 J • s

Rydberg constant R = 1.097 x 107 m-1

Absolute temperature: T (K) = T (°C) + 273

1 m = 109 nm = 1012 pm
 
 

Electronegativities

H 2.1
Li 1.0
Be 1.5
B 2.0
C 2.5
N 3.0
O 3.5
F 4.0
Na 1.0
Mg 1.2
Al 1.5
Si 1.8
P 2.1
S 2.5 
Cl 3.0

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This page is: http://chemiris.labs.brocku.ca/~chemweb/courses/chem180/Exam_Information_Sheet.html
Last revised: August 31 2000 by M. F. Richardson
© Brock University, 1999