Mighty Moles
Vocab
Magical Mole-Mole
Mysterious Mass-Mass
Name Your Limit (ing Reactant)
100
It is necessary to convert moles of one substance to moles of a second substance
What is mole ratio?
100
the units associated with molar mass
What are grams/mole?
100
The molar mass of calcium hydroxide.
What is 74 g/mol?
100
The difference between the units of molecular or 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
Another name for the mole, after the scientist who studied it.
What is Avogadro's number?
200
The type of stoichiometry that involves mass relationships among reactants and products in a chemical reaction
What is reaction stoichiometry?
200
C5H12 + 8O2 = 5CO2 + 6H2O The number of moles of carbon dioxide can I make if I start with 16 moles of oxygen gas.
What is 10 moles?
200
You should look here when solving a mass-mass problem.
What is the periodic table?
200
actual yield/theoretical yield x 100 =
What is percent yield?
300
The unit factor for a problem involving molar mass.
What is 1 mole over x grams or x grams over 1 mole.
300
the reactant that limits the amount of other reactants that can combine
What are limiting 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 g?
300
The reagents which do not run out when the reaction stops.
What are the reactants/reagents in excess?
400
Represented by the coefficient in a balanced chemical equation.
What is the number of moles?
400
to balance a chemical equation it may be adjusted.
What are coefficients?
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 Balancing the equation, then converting both masses of grams to moles.
What are the first steps to naming the limiting reactant?
500
given the following balanced equation how many moles of nitrogen are needed to produce 24 moles of ammonia. N2 + 3H2 --> 2 NH3
What is 12?
500
the study of mass relationships of elements in a compound
composition stoichiometry?
500
To get these, look at the coefficients in the balanced equation.
What is the numbers for a mole/mole ratio.
500
___H2 + ___ O2 --> ___ H2O The number of grams of oxygen gas which are needed to produce 10 grams of water.
What is 8.89 grams of O2?
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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