Gas Laws
Gas Law Problems
Stoichiometry Basics/Vocabulary
Balancing/Conversions
Limiting Reactants
100

This law determined that as pressure increases, so does temperature (and vice versa). 

What is Gay-Lussac's law? 

100

What unit must temperature be in for gas law equations? (unless specifically stated otherwise) 

What is Kelvin? 

100

The study of relationships between the amounts of reactants used and the amount of products formed in a chemical reaction.

What is stoichiometry? 

100

Is the following reaction balanced? If not, what is unbalanced? 

Zn + HCl --> ZnCl2 + H2 

100

2Al + 3CuSO4 --> 3Cu + Al2(SO4)3 

If 25.3 grams of Al reacts with 25.3 grams of CuSO4, what is the limiting reactant? 

What is CuSO4

200

This law states that volume is inversely proportional to pressure. 

What is Boyle's law? 

200

What factor is most important in determining which R value to use in ideal gas law problems?

What is the units of pressure? 

200

Matter is neither created nor destroyed in a chemical reaction.

What is the law of conservation of mass? 

200

Balance the following equation: 

Fe + Cl2 --> FeCl

2Fe + 3Cl2 --> 2FeCl

200

2Al + 6HCl --> 2AlCl3 + 3H2

 If 15.0g of each reactant are used, what is the excess reactant? 

What is Al? 

300

This law relates temperature and volume. 

What is Charles' Law? 

300

A balloon has a volume of 4.3L at 350K. What will the volume be if the temperature is reduced to 250K? 

What is 3.1L? 

300
Reactants that remain after a reaction stops.

What are the excess reactants? 

300

Zn + 2HCl --> ZnCl2 + H2

How many moles of HCl are required to produce 7.50 moles of ZnCl2

What is 15.0 mol HCl? 

300

3 Si + 2N2 → Si3N4 

When 21.44 moles of Si reacts with 17.62 moles of N2, how many moles of Si3N4 are formed? 

What is 7.15mol Si3N4

400

This law includes the addition of moles and a constant in order to describe the physical behavior pf an ideal gas.

Ideal gas law

400

The volume of a gas at 99.0 kPa is 300.0mL. If the pressure is increased to 188kPa, what will the new volume be? 

What is 158mL? 

400
The ratio between the numbers of moles of any two of the substances in a balanced equation.

What is a molar ratio?

400

4Al + 3O2 --> 2Al2O

How many grams of oxygen are required to produce 0.75 moles of Al2O3?  


What is 36.2g O2

400

2CuCl2 + 4KI → 2CuI + 4KCl + I2

When 0.56 moles of CuCl2 reacts with 0.64 moles of KI, the limiting reactant is KI. How many moles of the excess reactant remain?

What is 0.24 moles CuCl2?

500

This law explains why a pool float will be more inflated on a sunny warm day than on a cool evening. 

What is Charles' Law? 

500

At 25C, the pressure exerted by a gas in a container with a volume of .044L is 3.81 atm. How many moles of gas are present? 

What is .0069mol? 

500
The reactant that determines how much product will be formed in a reaction.

What is the limiting reactant? 

500

C2H4 + 3O2 --> 2CO2 + 2H2O

If you start with 45 grams of C2H4, how many grams of CO2 will be produced? 

What is 141.7g CO2?

500

2NaCl + Pb(NO3)2 --> 2NaNO3 + PbCl2

How many grams of lead(II)chloride are produced from the reaction of 15.3 g of NaCl and 60.8 g of Pb(NO3)2? (find the limiting reactant first!) 

What is 36.2 grams of PbCl2?

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