Study involving the mass relationships between reactants and products in a chemical reaction
What is (reaction) stoichiometry
100
Law which states that the total pressure of a gas mixture is the sum of the partial pressures of the component gases
What is Dalton's Law of Partial Pressures
100
The energy absorbed or released as heat in a chemical or physical change is measured in this
What is a calorimeter
100
Capable of being dissolved
What is soluble
100
The five assumptions made by the kinetic molecular theory
Gases consist of particles that are very far apart.
Collisions between particles are elastic
Particles are in constant rapid motion
There are no forces of attraction between gas particles
The temperature of a gas depends on the kinetic energy of the particles
200
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
What is a mole ratio?
200
Discovered that doubling the pressure on a sample of gas at a constant temperature reduces its volume by one half (PV=K)
Who is Robert Boyle
200
The specific heat of a 4.0 gram sample of glass that was heated from 274 K to 314 K, and found to absorb 32 J of energy
What is 0.2 J/(g K)
200
A type of solute-solvent combination where the particles are so large that they settle out unless the mixture is constantly stirred or agitated.
What is a suspension
200
A process by which gas particles pass through a tiny opening.
What is effusion
300
The mass of carbon dioxide, in grams, needed to react with 3.00 mol H2O in the following reaction:
6CO2 + 6H2O yields C6H12O6 + 6O2
What is 132 grams CO2
300
The volume of a Helium-filled balloon with a volume of 50.0 L at 25 degrees celcius, and 1.08 atm.
What is 60 liters of Helium?
300
A reaction pathway in which the energy of the products are less than the energy of the reactants.
What is an exothermic reaction?
300
For gases: Solubility ___________ as temperature increases.
For solids: Solubility _____________ as temperature increases.
What is decreases
What is increases
300
A force that tends to pull adjacent parts of a liquid's surface together, decreasing surface area to the smallest possible size
What is surface tension
400
The amount of SnF2, in grams, required to react with 30 grams of HF:
Sn + 2HF yields SnF2 + H2
What is 117.5 grams SnF2
400
The pressure in atmospheres exerted by 14 grams of nitrogen gas in a 10.0 liter container at 298 K
What is 1.22 atm?
400
The standard enthalpy change for:
S + O2 yields SO2
From the following reactions:
2SO2 + O2 yields 2SO3 delta H: -196 kJ
2S + 3O2 yields 2SO3 delta H: -790 kJ
What is -594 kJ
400
The number of moles present in 0.8 liters of a 0.5 M solution of HCl.
What is 0.4 moles HCl?
400
Indicates the temperature and pressure conditions at which the solid, liquid, and vapor of a substance can coexist at equilibrium
What is the triple point
500
The limiting reactant when 36.0 grams of H2O is mixed wtih 67.0 grams of Fe.
3Fe + 4H2O yields Fe3O4 + 4H2
What is Fe?
500
760 mm Hg is equal to this many kPa
What is 101.3 kPa?
500
The amount of heat transferred when 147 grams of NO2 is dissolved in 100 grams of water.
3NO2 + H2O yields 2HNO3 + NO delta H: -138 kJ
What is 146.28 kJ
500
The four colligative properties of solute-solvent solutions.
EXTRA 10 points!! Explain each colligative property
What is vapor-pressure lowering, freezing-point depression, boiling-point elevation, osmotic pressure.
500
The amount of AgCl, in grams, formed if 45 mL of 1.5 M AgNO3 is added to KCl.
AgNO3 + KCl yields AgCl + KNO3