Stoichiometry
Calculate the molar mass of Fe(NO3)2
179.87 g/mol
If Mr. Lee bakes 30 cookies and 8 were burnt. What was the percent yield of his cookies?
73.3%
Which is the limiting reactant if you have 8 cheese slices, 6 bread slices, and 10 ham slices?
(Recipe Calls for 2 slices of bread, 1 slice of cheese, 2 slices of ham)
Bread slices.
__ N2 + __O2 --> __NO2
How many moles of NO2 are produced from 3.36 moles of nitrogen gas?
6.72 moles of NO2
____Al + ____O2 🡪 ____Al2O3
14.7g of Al produces 26.1g Al2O3 determine the percent yield
93.9%
__ H2 + __O2 --> __H2O
If I give you 30 grams of hydrogen and 100 grams of oxygen, which will be my limiting reactant?
Oxygen
__KClO3 → __KCl + __O2
How many moles of KCl are produced when 0.557 moles of O2 are also produced?
0.371 moles KCl
____Al + ____O2 🡪 ____Al2O3
16.5g of O2 produces 34.6g Al2O3 determine the percent yield
98.6%
__ H2 + __O2 --> __H2O
If I give you 40 grams if hydrogen and 50 grams of oxygen, which will be my limiting reactant?
Oxygen
__ Cu + __ AgNO3 --> __ Cu(NO3)2 + __ Ag
How many grams of Cu(NO3)2 can be made from 3.9 moles of Cu
730 grams Cu(NO3)2
____Al + ____O2 🡪 ____Al2O3
1.00g Al produces a percent yield of 91.2%, how many grams were actually produced in the lab?
1.72g Al2O3
__ H2 + __O2 --> __H2O
If 3.30 grams of H2 react with 3.40 grams of O2, How many grams of water can be produced?
3.83 g H2O
__ N2 + __O2 --> __NO2
5.50 grams of N2 produces how many grams of NO2
18.1 g NO2
____Al + ____O2 🡪 ____Al2O3
2.66 mols of Al react with 5.34 mols of O2. Determine the percent yield when 130.1g of Al2O3 are produced in a lab
95.9%
__ Cu + __ AgNO3 --> __ Cu(NO3)2 + __ Ag
How many grams of Ag are produced when 1.02g of Cu reacts with 10.2g of AgNO3
3.45g Ag