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Definitions
Limiting reactant
Percent yield
Excess Reactant
Conversions
100
Limits the extent of a reaction, thereby determining the amount of a product made.
What is Limiting Reactant.
100
Which is the limiting reactant if you have 8 car bodies and 48 tires. Cb+4T=Cb(4T)
What is Car bodies.
100
What is the percent yield if you have an actual yield of 143g of H and a theoretical yield of 167g. Calculate to Three significant figures.
What is 85.6%.
100

It takes 2 cups of flour, 1 cup of sugar, and 2 eggs to make a cake. If you have 2 cups of flour, 1 cup of sugar, and 4 eggs, how much of the excess reactant(s) are leftover?

2 extra eggs left over

100
What conversion factor allows us to convert from moles to moles?

Molar conversion

200
Left over reactant after a reaction.
What is excess reactant.
200
Which is the limiting reactant if you have 10 grams of H(1.0079), and 15 grams O2(31.9988). H+O2=HO2
What is O2.
200
If the theoretical yield is 75g N and the percent yield is 45%, what is the actual yield. Calculate answer to three significant figures.
What is 33.8g N.
200

1 sandwich = 2 pieces of bread and 1 slice of cheese. If I have 28 pieces of bread and 11 slices of cheese, how much of the excess reactant(s) do I have leftover?

6 pieces of bread

200

What conversion factors do we need to be able to convert from mass to mass?

molar conversion and molar mass conversion

300
The maximum amount of a product that can be produced from a given amount of reactants.
What is theoretical yield.
300
2.00 g sample of ammonia(17.0305) is mixed with 4.00 g of oxygen(31.9988). Which is the limiting reactant? 4 NH3(g) + 5 O2(g)=4 NO(g) + 6 H2O(g)
What is Oxygen.
300
Produced from 16 g H2(2.01588) ,the actual yield of H2O(18.0153) is 138g . What is the percent yield? Three Significant Figures. 2H2+O2=2H2O
What is 96.7%.
300

1 sandwich = 2 pieces of bread, 3 slices of meat, and 1 slice of cheese. If I have 6 pieces of bread, 12 slices of meat, and 5 slices of cheese, what amount of excess reactant(s) are leftover?

3 pieces of meat, 2 pieces of cheese

300

N2 +   3 H2     -->  2 NH3

8.53 moles of Hydrogen react with excess Nitrogen in the above reaction. How many grams of Ammonia are produced?

96.7 g 

400
The amount of product actually produced when the chemical reaction is carried out in an experiment.
What is actual yield.
400
80g of Cu(63.546) and 50g of O2(31.9988). which is the limiting reactant? 2Cu+O2=2CuO
What is copper.
400
What is the formula for finding percent yield?
What is (actual yield / theoretical yield)x 100 = percent yield.
400

I have 5 bike frames and 7 wheels. How many bikes can I make and what is leftover?

3 bikes, 2 frames and 1 wheel

400

C5H12 + 8 O2 --> 5 CO2 + 6 H2O

51.82 moles of Carbon Dioxide were produced in the combustion of Pentane.  How many moles of Oxygen were consumed?

83 mol oxygen

500
The ratio of the actual yield to the theoretical yield expressed as a percent.
What is percent yield
500
In an experiment 25 grams of chloroform(119.378) and 25 grams of chlorine(70.906) were mixed. Which is the limiting reactant? CHCl3 + Cl2 = CCl4 + HCl
What is Chloroform.
500
What is the percent yield of the following reaction if 60 grams of CaCO3(100.087) produces 15 grams (actual yield) of CaO(56.0774)? CaCO3→CaO + CO2
What is 44.6% .
500

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich. If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, how much of the excess reactant(s) are leftover?

2 pieces bread, 12 tablespoons jelly

500

2 Al(OH)3 +  3 H2SO4 -->  Al2(SO4)3 +  6 H2O

55.3 grams of Aluminum Hydroxide (Al(OH)3) are available to react in the above reaction.  How much Sulfuric Acid (H2SO4), in grams would be required to completely neutralize the Aluminum Hydroxide?

104.32 g aluminum hydroxide