General Knowledge Flashcards
(66 cards)
Area
L^2
cm^2
Volume
L^3
cm^3
Speed or velocity
L/T
cm/s
Acceleration
L/T^2
cm/s^2
Force
ma
g cm/s^2 or dynes
Pressure
F/A
dynes/cm^2 or g/cm s^2
Density
m/L^3
g/cm^3
Surface tension
F/L
dynes/cm or g/s^2
Work or energy
FL
dynes cm or erg
1 atm is equivalent to
760 torr or mmHg
76 cmHg
1.01325 x 10^6 dynes/cm^2
1.01325 x 10^5 N/m^2 or Pa
1.01325 bar
The gas constant (R) is equivalent to
0.08205 L-atm/n-K
8.314 m^3-Pa/n-K
Vapor pressure lowering
Vapor pressure
Vapor pressure of pure substance x mole fraction of solute
Vapor pressure of pure substance - change in vapor pressure
Boiling point elevation
Boiling point
Kbm
Boiling point of pure substance - change in boiling point
Freezing point depression
Freezing point
Kfm
Freezing point of pure substance - change in freezing point
Osmotic pressure
pi = mRT
Freezing point depression using Liso for electrolytes (Van’t Hoff)
Modified Van’t Hoff
ikfm
Liso m
Factors that affect solubility of gas in liquid (Henry’s Law)
Pressure
Temperature
Presence of dissolved substances
Factors affecting Le Chatelier’s Principle
Pressure
Temperature
Concentration chanage
Methods for determining specific gravity in solids
Hydrostatic balance method
Pynometer method
Graduated cylinder method
Immersion of solid in transparent liquid
Methods for determining specific gravity in liquids
Pycnometer using Leach pycnometer
Floatation method (hydrometers)
Constant weight with variable depth of immersion (Baume, Twaddell, Cartier, Gay-Lussac, Alcoholometer or Tralle’s hydrometer)
Constant depth of immersion with variable weight (Nicholson, Fahrenheit, Lovi’s beads, Mohr-Westphal balance)
Methods for determining specific gravity in manometric method
Fischer-Davidson gravitometer
Dipole-dipole is also known as
Keesom forces
Dipole-induced dipole is also known as
Debye forces
Induced dipole- induced dipole is also known as
Dispersion or London forces
