Name:
Class:
1. Given this equation: ____ N2 + ____ H2 ____ NH3, balance it and write the following molar
ratios:
a)
N2 / H2
b)
N2 / NH3
c)
H2 / NH3
2. Given the following equation: ____ H2 + ____ S8  _____ H2S, balance it and write the following
molar ratios:
a)
H2 / H2S
b)
H2 / S8
c)
H2S / S8
3. Given the following equation: ____H2 + ____O2  ____H2O, balance and write the following
molar ratios:
a)
What is the H2 / H2O molar ratio?
b)
Supposed you had 20 moles of H2 on hand and plenty O2, how many moles of H2O could you
make?
c)
What is the O2 / H2O molar ratio?
d)
Supposed you had 20 moles of O2 on hand and enough H2, how many moles of H2O could you
make?
4. You have already balanced ____N2 + ____H2  ____NH3
a)
If you used 1 mole of N2, how many moles of NH3 could be produced?
b)
If 10 moles of NH3 were produced, how many moles of N2 would be required?
c)
If 3 moles of H2 were used, how many moles of NH3 would be made?
d)
If 0.6 moles of NH3 were produced, how many moles of H2 are required?
5. ____AlF3 + ____O2  ____Al2O3 + ____F2
6.
a)
20 moles of AlF3, will produce ____________ moles of F2.
b)
________ moles of AlF3 will react with 0.6 moles of O2.
____C3H8 + ____O2  ____CO2 + ____H2O
a)
How many moles of oxygen react with 11 moles of C3H8?
b)
How many moles of CO2 are produced if 3.5 moles of water are produced?
7. ____O2 + ____Fe  ____Fe2O3
a)
____ moles of oxygen gas react with ____ moles of iron to produce ____ Fe2O3
b)
______moles of O2 are required to produce 3.0 moles of Fe2O3