Name: ________________________________
Working with mole ratios- Chemistry 2019
1. Balance this equation: H2 + S ---> H2S, write the following molar ratios:
H2 / H2S
H2 / S
H2S / S
Write the balanced equation and solve each of the following:
2. Aluminum metal and hydrogen chloride react to form aluminum chloride and hydrogen gas.
a.
How many moles of aluminum metal are needed to produce 2.63 moles of aluminum
chloride?
Show your work
b.
How many moles of hydrogen chloride are needed to react with this number of moles of
aluminum metal?
Show your work
2. Write and balance the equation for the synthesis of water. Then answer the following questions.
___________________________________________________________________________
a) What is the H2 / H2O molar ratio?
b) Suppose you had 30 moles of H2 on hand and plenty of O2, how many moles of H2O could you make?
c) What is the O2 / H2O molar ratio?
d) Suppose you had 30 moles of O2 and enough H2, how many moles of H2O could you make?
Bonus
4) Balance this equation: N2 + H2 ---> NH3, for the following problems
a) If you used 1 mole of N2, how many moles of NH3 could be produced?
b) If 20 moles of NH3 were produced, how many moles of N2 would be required?
c) If 5.00 moles of H2 were used, how many moles of NH3 would be made?
d) If 0.400 moles of NH3 were produced, how many moles of H2 are required?