Vocabulary
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is mole ratio?
CO2 + 2 LiOH --> Li2CO3 + H2O
The number of moles LiOH that are required to react with 20 moles CO2.
What is 40 moles LiOH?
Mg + 2 HCl --> MgCl2 + H2
The number of grams H2 produced if we started with 2 moles of HCl.
What is 2 grams H2?
Mg + 2 HCl --> MgCl2 + H2
How many grams H2 is produced from the reaction of 75 grams HCl?
What is 2.0 grams H2?
The type of yield that is determined simply by solving a stoichiometry problem.
The measured amount of product obtained after performing a chemical reaction in the laboratory.
What is actual yield?
6 CO2 +6 H2O --> C6H12O6 + 6 O2
The number of moles CO2 that are needed to react with 3.25 moles H2O.
What is 3.25 moles CO2?
Mg + 2 HCl --> MgCl2 + H2
The mass in grams HCl needed to react with 2.50 moles Mg.
What is 182 grams HCl?
2 KClO3 --> 2 KCl + 3 O2
How many grams KCl are produced if 5 g of KClO3 is decomposed?
What is 3 g KCl?
The percent yield for a reaction if the theoretical yield of a product is 35 grams, but only 29.8 grams of product were made in the lab.
What is 85 percent?
The substance that determines the amount of product(s) that can form in a chemical reaction.
What is the limiting reactant?
2 Mg +O2 --> 2 MgO
The number of moles MgO that are produced from 1.2 moles Mg.
What is 1.2 moles MgO?
4 Al + 3 O2 --> 2 Al2O3
The number of moles Al needed to combine with 1.58 moles of O2 to make Al2O3.
What is 2.1 moles Al?
2 Na + Cl2 --> 2 NaCl
Determine the number of grams of product that can be produced from 25 grams Na and 100 g Cl2.
What is 63.5 grams NaCl?
C6H6 + Cl2 --> C6H5Cl + HCl
The theoretical yield in grams of C6H5Cl if 45.6 g of C6H6 reacts.
What is 65.7 grams C6H5Cl?
The ratio of the actual yield to the theoretical yield multiplied by 100.
What is percent yield?
N2 + 3 H2 --> 2 NH3
The number of moles of NH3 that are produced when 6 moles H2 gas react.
What is 4 moles NH3?
2 NH3 --> N2 + 3 H2
The number of moles H2 that can be formed by the decomposition of 0.145 moles NH3.
What is 0.218 moles H2?
2 Al + 3 F2 --> 2 AlF3
The mass in grams of Al needed to react completely with 40 grams F2.
What is 18.9?
The percent yield if 63.7 grams C6H5Cl is actually produced in lab.
What is 97 percent?
States that mass is neither created nor destroyed during ordinary chemical or physical reactions.
What is the law of conservation of mass?
2 H2 + O2 --> 2 H2O
The number of moles of O2 that would be required to produce 5.0 moles of H2O.
What is 2.5 moles O2?
2 Al + 3 F2 --> 2 AlF3
The mole ratio of Al:F2.
What is 2:3?
9 Fe + 4 Al2O3 --> 8 Al + 3 Fe3O4
The limiting reactant when 510 grams Al2O3 reacts with 391 grams Fe to produce x grams Al.
What is iron?
2 As2O3 + 3 C --> 3 CO2 + 4 As
The percent yield if 5.33 grams As are produced from 8.87 grams As2O3.
What is 79 percent?