Mighty Moles
Vocab
Magical Mole-Mole
Mysterious Mass-Mass
Name Your Limit (ing Reactant)
100
6.02 x 10^23 particles
What is one mole?
100
A 'tool' for assuring you will end up with the proper units when doing a stoichiometry problem.
What is unit analysis?
100
The molar mass of calcium hydroxide.
What is 74 g/mol?
100
The difference between the units of formula mass and the units of molar mass.
What is one is g and one is g/mol?
100
The reactant which runs out first.
What is the limiting reactant?
200
The number of grams in one mole of O2.
What is 32 grams?
200
Equations must be balanced so that this law will not be broken.
What is the Law of Conservation of Mass/Matter (or matter cannot be lost as a result of a chemical reaction)?
200
C5H12 + 8O2 = 5CO2 + 6H2O The number of moles of carbon dioxide that can be made from 16 moles of oxygen gas.
What is 10 moles?
200
You should look here when determining the mass of a compound.
What is the periodic table?
200
actual yield/theoretical yield x 100 =
What is percent yield?
300
The units for molar mass or molecular weight.
What is # grams over (or per) 1 mole?
300
The left side of a chemical equation in front of the yields sign (arrow).
What are reactants?
300
Balance. ___Al + ___Fe3O4 ---> ___Al2O3 + ___Fe
What is 8 Al + 3 Fe3O4 ---> 4 Al2O3 + 9 Fe ?
300
The number of grams of magnesium in 7.00 moles.
What is 168 grams?
300
The reactants which do not run out when the reaction stops.
What are the excess reactants?
400
Represented by the coefficients in a balanced chemical equation.
What are the number of moles of each element or compound in a chemical reaction?
400
The thing that will cause your reaction to stop.
What is the limiting reactant/reagent? (when it runs out)
400
___CH4 + ___O2 --> ___ CO2 + ___H2O If I want to get 5.3 moles of water, how many moles of methane do I need?
What is 2.65 moles of methane?
400
____Al2O3 --> ____Al + ____ O2 The number of grams of Al2O3 which decompose if 81 grams of Al react with oxygen gas.
What is 153 grams Al2O3?
400
500g HCl and 500g Ag react to form AgCl and H2. Write and balance the reaction equation, then convert both masses from grams to moles.
What are the first steps to naming the limiting reactant?
500
The molecular weight of glucose (C6H12O6)
What is 180 grams?
500
The calculation of quantitative (measurable #) relationships of the reactants and products in a balanced chemical reaction.
What is stoichiometry?
500
__ C12H22O11 + __ O2 ----> __ C6H8O7 + __ H2O
What is C12H22O11 + 3 O2 ----> 2 C6H8O7 + 3 H2O?
500
___ C2H5OH + ___ O2 --> ___ H2O + CO2 The number of grams of ethanol which are needed to produce 54 grams of water.
What is 8.67 grams of C2H5OH?
500
___SnO2 + ___H2 → ___ Sn + ___H2O You have 36 g of SnO2 and 36 g of H2. Find the limiting reactant.
What is SnO2?
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