Vocabulary
The mass of one mole of a substance
Molar Mass
if 4 moles of oxygen react, how many moles of water are produced in the reaction 2H2+O2-->2H2 O
4 moles
how many grams are in 2 moles of carbon dioxide(CO2)
88 grams
the branch of chemistry that deals with mass relationships in compounds and reactions
stoicheometry
H2+O2--H2O
H2+O-->2HO
reactant
when 5 moles of chlorine reacr, how many moles of aluminum chloride are formed in the reactant 2Al+3Cl2-->2Al Cl2
3.33 moles
what is the mass in grams of 0.5 moles of water (H2O)
9 grams
In a chemical reaction, these numbers can be used to determine the mole ratio of any reactants and/or products
Coefficients
Al+Cl2-->AlCl3
2Al+3Cl2-->2AlCl3
Ratio between the numbers of moles of any two of the substances in a balanced chemical equation
Mole ratio
if 2 moles of Na react with excess Cl2 to form NaCl, how many moles of NaCl are produced
2 moles
calculate the weight in grams of 3 moles of sodium chloride (NaCl)
234 grams
The units of molar mass are..
Na+Cl2-->NaCl
2Na+Cl2-->2NaCl
reactants left over when a reactions stop
how many moles of oxygen are needed to produce 8 moles of water in the reaction 4NH2+5O2-->6H2O
10 moles
determine the mass in grams of 1.5 moles of sulfuric acid (H2SO4)
98 grams
In the reaction represented by the equation
2Al2O3-->4Al+3O2, what is the mole ratio of Aluminum to Aluminum Oxide
2:1
NH3+O2-->NO+H2O
4NH3+5O2-->4NO+6 H2O
The reactants which is used up and limits the extent of the reaction and thereby determines the amount of product formed
limiting reactant
when 3 moles of H2, react with N2 to produce NH3, how many moles of NH3 are formed
2 moles
How many grams are there in 4 moles of methane (CH4)
65 grams
This is the molar mass of Copper(II) Sulfate
160 g/mol
NH3+O2-->NO+H2O
3H2+N2-->2NH3