Vocabulary
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
Mole ratio
What is the mass of CO2?
44g
CO2 + 2LiOH --> Li2CO3 + H2O How many moles of lithium hydroxide are required to react with 20 mol of CO2?
40 mol LiOH
You should look here when solving a mass-mass problem.
Periodic Table
The measured amount of product obtained after performing a chemical reaction.
Actual Yield
What is the formula mass of 2NaCl?
58g
6CO2 +6H2O --> C6H12O6 + 6O2 How many moles of carbon dioxide are needed to react with 3.25 mol of water in the reaction described above?
3.25 mol CO2
2 H2 + O2 ----> 2H2O
How many moles of H2 do i have, if i have 8 g of H2?
4 mol
The reactant that determines the amounts of the other reactants that can combine--and the amount of product that can form--in a chemical reaction.
Limiting Reactant
2H2 + O2 -----> 2H2O What is the ratio between hydrogen and oxygen?
2:1
2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?
1.2 mol MgO
2 H2 + O2 ----> 2H2O
How many g of O2 do i have, if i have 2 mol of O2?
64g
The ratio of the actual yield to the theoretical yield, multiplied by 100.
Percentage Yield
What is the mole ratio of Carbon dioxide and Carbon
C2 + 2 O2 ----> 2CO2
1:2
Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas? Hint: Hydrogen Gas is H2
4 mol NH3
2 H2 + O2 ----> 2H2O
What mass of O2 will i have if i have 2 mol of H2?
32g
States that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
law of conservation of mass
In the movie, Jurassic Park, what was the item that Nedry was suppose to use in order to smuggle out the Dino DNA?
Shaving Can
Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water? Hint Oxygen is O2
2.5 mol O2
2 H2 + O2 ----> 2H2O
What is the mass of H2O, if i have 4g of H2?
36g H2O