Mass Relationships
What is 44. g/mol?
NaCl
What is sodium chloride?
Carbon dioxide
What is CO2?
2 moles of Ag = ? atoms of Ag
What is 12.04 x 1023 atoms?
Molar volume @ STP
What is 22.4 L?
2 mol of O2 = ? grams of O2
What is 64 grams?
CO
What is carbon monoxide?
calcium chloride
44.8 Liters of oxygen gas = ? moles of O2
4 Variables related to the behavior of gases.
What are volume, temperature, moles and pressure?
Percent composition of oxygen in CO2
What is 72.7% or 73%?
N2O7
phosphorus trifluoride
What is PF3?
Mole ratio between Cl2 and Fe
2 Fe + 3 Cl2 --> 2 FeCl3
What is 3:2?
At a pressure of 430 KPa a gas occupies 30 L. If the pressure decreases by half (215 KPa) the volume will be __________.
What is 60 L?
Grams of iron needed if 1.5 moles of Cl2 are used.
2 Fe + 3 Cl2 --> 2 FeCl3
What is 55.85 g of Fe?
MgSO4
What is magnesium sulfate?
barium hydroxide
What is Ba(OH)2?
Moles of potassium chloride produced from 6 moles of Cl2
2 K + Cl2 --> 2 KCl
What is 12 moles of KCl?
Ammonia gas is created during the following reaction:
N2 + 3 H2 --> 2 NH3
This reaction is considered this type of reaction.
What is synthesis?
Chemical compound formula for a substance that contains 21.6% Na, 33.3% Cl and 45.1% O.
What is NaClO3?
CoS
What is cobalt (II) sulfide?
vanadium (V) nitrite
What is V(NO2)5?
Limiting reactant when 8 mol of Cl2 and 9 mol of Fe react in the following way:
2 Fe + 3 Cl2 --> 2 FeCl3
AND theoretical yield of FeCl3 produced (in moles)
L.R. - What is Cl2?
T.Y. - What is 5.33 moles of FeCl3?
5 postulates of the KMT
1) Volume of the individual gas particles are considered points in space - no volume.
2) No attractive or repulsive forces present.
3) Gas moves rapidly in constant motion.
4) Elastic collisions.
5) The average kinetic energy of the particles is proportional to the absolute temperature (in Kelvin).