molar mass
molar mass of water
18.02 g/mol
In the equation:
N₂ + H₂ → NH₃
What is the mole ratio of H₂ to NH₃?
3:2
Using:
H₂ + O₂ → H₂O
How many grams of H₂O are produced from 4 g of H₂?
36 g H₂O
What unit is commonly used for volume in the Ideal Gas Law?
Liters
What conversion factor is used to move between substances in stoichiometry?
Mole ratio
sodium sulfate
142.04 g/mol
In the equation:
Fe + O₂ → Fe₂O₃
What is the mole ratio of O₂ to Fe₂O₃?
3:2
Using:
N₂ + H₂ → NH₃
How many grams of NH₃ are produced from 6.0 g of H₂?
34 g NH₃
What does pressure measure?
how frequently particles are colliding with the container.
What unit must you usually convert to before using a mole ratio?
Moles
carbon tetrachloride
153.81 g/mol
In the equation:
KClO₃ → KCl + O₂
What is the mole ratio of KClO₃ to O₂?
2:3
Using:
Mg + O₂ → MgO
How many grams of MgO are produced from 24 g of Mg?
40 g MgO
If pressure increases while temperature and moles stay constant, what happens to volume?
Volume decreases
What happens to gas pressure if volume decreases and everything else stays constant?
Pressure increases
Daily Double
iron (II) oxide
71.84 g/mol
In the equation:
C₆H₁₂O₆ + O₂ → CO₂ + H₂O
What is the mole ratio of glucose to oxygen gas?
1:6
Using:
CaCO₃ → CaO + CO₂
How many grams of CO₂ are produced from 200 g of CaCO₃?
88 g CO₂
DAILY DOUBLE
A gas contains 0.5 mol at 400 K and 4 atm. Find volume.
About 4.1 L
List the four main steps of a gram-to-gram stoichiometry problem.
100.09 g/mol
Using:
H₂ + O₂ → H₂O
How many moles of H₂O are produced from 2 moles of H₂?
2 moles H₂O
Using:
C₃H₈ + O₂ → CO₂ + H₂O
How many grams of CO₂ are produced from 44 g of propane?
132 g CO₂
A gas contains 5 mol at 350 K and 3 atm. Find volume.
About 47.9 L
Using the unbalanced equation:
Al + Cl₂ → AlCl₃
If 27 g of Al reacts completely, how many grams of AlCl₃ are produced?
133.5 g AlCl₃