Shared Flashcard Set

Details

Chem Mid Term
Chem
22
Chemistry
10th Grade
01/14/2011

Additional Chemistry Flashcards

 


 

Cards

Term
Si Prefixes
Definition

Killo,k

Hecto, h

Deka, da

Deci, d

Centi, c

Milli, m

Micro

 

Term
SI Units
Definition

Cubic meter m3

grams per cubic centimeter g/cm3

pascal Pa

Joule J

Term
Dalton's Atomic theory
Definition

  1. all mater is made up of atoms
  2. atoms of the same element are identical
  3. atoms are indivisible
  4. cannot be created or destroyed
  5. no half atoms 

Term
Molecular Formula
Definition

1. Find the mass of the empirical unit.

2. Figure out how many empirical units are in a molecular unit.


Term
Structural Formula
Definition
Term
Crookes
Definition
Term
Emperical Formula
Definition
1. Assume u have 100 grams of everything
2. Convert to moles
3. Divide by the smallest number
Term
Bohr
Definition
Term
% Composition
Definition
mass of element/mass of compound x 100
Term
Manometer
Definition
can determine the vapor pressure of liquid 
Term
Barometer
Definition
device used to measure atmospheric pressures
Term
What does a boiling point depend on
Definition
Term
what is the boiling point of water at STP
Definition
Term
Heat of Fusion 
Definition

Heat required to bring about melting 

q=(m)(heat_of_fusion)

Term
Heat of Vaporation
Definition

Heat required to change a liquid into vapor

q=(m)(heat_of_vaporization)

Term
Endothermic reactions
Definition

  1. system gains heat
  2. change in heat is positive
  3. absorbs heat from surroundings
  4. heat is a reactant

 

Term
exothermic reactions
Definition

  1. releases heat
  2. change in heat is negative
  3. energy flows out
  4. produces heat
  5. heat is a product

Term
Boyle's law
Definition

pressure/volume relationship = inversely proprotional

temp is constant 

 

P1xV1 =P2xV2

Term
Charles's law
Definition

volume/temperature relationship =directly proportional

pressure is constant

 

V1/T1 =V2/T2

Term
Combine Gas Law 
Definition

 

 

Term
Ideal Gas Law
Definition
PV=nRT
Term
Graham's Law
Definition

Diffusion - tendency of molecules to move toward area of low concentration

Effusion - process in which gas escapes through a tiny hole in a container

Supporting users have an ad free experience!