The following problems ask you to find the concentration in moles
per liter (M or mol/L) or to use the concentration to find how many
moles are present in a given volume of solution.
1) Find the concentration of a Mg(NO3)2
solution in which 25.0 g of Mg(NO3)2 are
dissolved to make a solution with a volume of 1350 mL.
2) Find the amount of AgNO3 needed to make 375 mL of a
0.750 M solution.
3) How many moles of CuCl2 are in 535 mL of a 0.500 M
4) You have a NaCl solution with a concentration of 0.87 mol/L. How
many moles are in 10 mL of the solution? How many moles of NaCl are
in 500 mL of solution?
Stoichiometry with Solutions
As with any other stoichiometry problem: find the number of moles
1) 3CuSO4(aq) + 2Al(s) → 3Cu(s) +
How many mL of a 0.750 M solution of copper (II) sulfate are needed
to react with an excess of aluminum to provide 14 g of copper?
(Hint: work backwards)
2) Using the equation in question one, how many mL of a 0.400 mol/L
copper (II) sulfate solution are required to completely react with
15 g of aluminum?
3) 2NaHCO3 + H2SO4 →
Na2SO4 2H2O + 2CO2
Find the volume of 0.350 M NaHCO3 solution required to
react with 7.00 g H2SO4.
4) Using the equation in question three, find the concentration of
a NaHCO3 solution needed to completely react with 3 mol
H2SO4. Assume you will use a volume of 5.00 L.