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Chem 1210 Cheat Sheet Unit 2 Exam 1 kg =1000g 0 Kelvin=−273.15 ℃ 1 cm=1 x 10 8 Å 1 L=1000 mL=1000 cm 3 1 mL =1 cm 3 760 torr =760 mmHg =101325 Pa Pa= N m 2 = kg m∗s 2 = J m 3 Gravity: g=9.81 m / s 2 Density: ρ= mass volume Avogadro’s #: 6.022 x 10 23 atoms mol Absolute Error / Precision %: ±value mass∨volume x 100 % Pressure: P= Force Area = mass∗gravity Area % Error = Experimental−Theoretical Theoretical Force exerted on 1 vertical wall: F= 1 2 ρgh 2 w Law of Flotation: ↓ Weight=↑F B Archimedes’ Principle: ↑F B =Weight of Liquid Displaced Ideal Unit Cell Structures: SCC BCC HCP FCC / CCP
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Chem 1210 Cheat Sheet Unit 2 Exam
Gravity:
Density:
Avogadros #:
Absolute Error / Precision %:
Pressure:
% Error =
Force exerted on 1 vertical wall:
Law of Flotation:
Archimedes Principle:
Ideal Unit Cell Structures:
SCC
BCC
HCP
FCC / CCP
L = 2R
L = 4R /
L = 2 R
1 atom
2 atoms
4 atoms
52% PE
68% PE
74% PE
74% PE
PE = Packing Efficiency