Form A
1
NAME: _ General Chemistry 115 Exam 1 Avagodro's number 6.022 x 1023 1 kg = 2.20 lb 1 lb = 454 g
SECTION:_
1. When you perform the following operation, how many significant figures should
t1
Avogadros number
Electron charge (2)
Electron mass
Faraday cosmnt (F)
Gas constant (R)
Neutron mass
Plancks constant (k)
Proton mass
Rydberg constant (RH)
Speed of light in vacuum
1 lb = 453.6 g
1
Physical Properties (Units (SI)
Tuesday 6 September 2016
In Science there are 3 Fundamental Properties
- Length- Meter- Wavelength of Kr
- Mass- Kilogram
- Time- (Physical Property-?)- Second- 1/86400
Some Practice Problems - Force
1. A box is being pulled with constant speed across a horizontal floor by a force of 60 N that is
making an angle of 37 with the horizontal. It is known that the coeffic
Energy level
Type of orbital
Names and amount
number of electrons in each
1
s
one s, called 1s
Contains 2 electrons: 1s2
2
s
one s, called 2s
contains 2 electrons: 2s2
p
three p's, called 2px, 2py, 2p
principal
quantum
number, n
angular momentum
quantum number, l
can be 0 . n-1
magentic quantum
number ml can be
1
0
0
2
0
0
3
-l . 0 .+l
1
-1, 0, 1
0
0
1
2
-1, 0, +1
-2, -1, 0, 1, 2
types of orbital a
Chapter 10
10.1 You need to know all the molecular geometries for molecules that have no lone pairs on central
atom. You also need to know the electronic geometry (the arrangement of electron pairs) a
Form B
1
NAME: _ General Chemistry 115 Exam 2 h = 6.63 x 10-34 J . s RH = 2.18 x 10-18 R = 0.0821 L . atm/ K . mol 1 L . atm = 101.3 J April 5, 2004
SECTION:_
1 nm = 1 x 10 -9 m s of H2O = 4.184 J
1
NAME: _ General Chemistry 115 FINAL h = 6.63 x 10-34 J . s RH = 2.18 x 10-18 J R = 0.0821 L . atm/ K . mol 1 L . atm = 101.3 J E=h c= PV = nRT M = dRT/P M1V1 = M2V2 1. How many grams in 3.90 mole i
master
1
NAME: _ General Chemistry 115 Exam 2 h = 6.63 x 10-34 J . s RH = 2.18 x 10-18 R = 0.0821 L . atm/ K . mol 1 L . atm = 101.3 J April 5, 2004
SECTION:_
1 nm = 1 x 10 -9 m s of H2O = 4.184 J
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MAIN
General
Quantum Numbers,
Atomic Orbitals, and
Electron Congurations
Contents:
Quantum Numbers and Atomic Orbitals
1. Principal Quantum Number (n)
2. Angular Momentum (Secondary, A