Moles
What is Avogadro's Number?
(Give the number and definition)
6.022x1023 particles per mole
the number of atoms, molecules, or particles in exactly one mole of a substance
What is the Law of Conservation of Mass?
Matter cannot be created or destroyed
What is the Mole Ratio?
The conversion factor used to convert the units of moles of one substance to moles of another substance
What is the Excess Reactant?
The reactant that is left over after a chemical reaction stops
What is Molar Mass?
the sum of the atomic masses of all the atoms in its chemical formula
What is a coefficient?
the number in front of chemical formulas in a balanced chemical reaction equation
How do you determine the number of moles from the mass of a substance?
Divide by the molar mass
What is Theoretical Yield?
The maximum amount of product that could be formed from a given amoun of reactants
What is the molar mass of water?
18 g/mol
Given the reaction: N2 + 3H2 --> 2NH3
What is the mole ratio of Hydrogen to Ammonia?
3:2
Given the reaction: 2H2 + O2 --> 2H2O
How many moles of Water are produced from 5 moles of Oxygen?
10
What is Percent Yield?
The percent ratio of the amount of product the lab experiment actually produced to the the amount of product that should have been produced
What is a chemical formula?
Given the reaction: CH4 + 2O2 --> CO2 + 2H2O
What mass of CO2 is produced from 2 moles of CH4?
88 grams
How many moles are in 44 grams of Carbon Dioxide?
1