Definitions
The Definition of molar mass
All atomic masses added together in a formula
2h2 + O2 --> 2H2O
If 4 moles of H2 react how many moles of H2O are produced
4 moles of H2O
How many grams are in 3 moles of CO2
132 g of CO2
When doing mixed mole conversions, what do you always go through.
What is moles
Molar mass of H2O
18 g/mol
The definition of a Mole
A unit used in chemistry to measure the amount of substance
N2 + 3H2 --> 2NH2
If 6 moles of H2 react how many moles of NH3 are produced
4 moles NH3
What is the percent composition of NA in NaCl
39.3%
Avogadro's number
What is 6.02 x 10^23
Molar mass of NaCl
58.5 g/mol
Definition of Theoretical yield
What is the maximum amount of product that can be obtained from a given amount of reactants.
2H2 + O2 --> 2H2O
90g of H2O
If you have 20 g of NaCl how many moles do you have
0.34 mol of NaCl
What does the limiting reactant determine
What is the amount of product made
Molar mass of CaCO3
100 g/mol
Definition of percent composition
What is the percentage (by mass) of each element in the compound
N2 +2H2 --> 2NH3
68g NH3
How many grams are in 0.5 moles of O2
16 g O2
What is the conversion between one step stoichiometric conversions
What is Mole-Mole conversions
Molar mass of Al2(SO4)3
342 g/mol
The study of the measurable relationships between the amounts of reactants used and products formed in a chemical reaction
What is stoichiometry.
2Al + 3Cl2 --> 2AlCl3
How many grams of AlCl3
27g of Al
What is the percent composition of Ca, C, and O in CaCO2
Ca is 40%
C is 12%
O is 48%
Balance C3H8 + O2 --> CO2 + H2O
2 :10 :6 :8
Molar mass of Fe2(SO4)3
400 g/mol