Chemistry 11 – Dilution Calculations Notes
Molarity of Mixture =
Name: ______________
total moles of chemical in which we are interested
total volume of mixture
Dilute Solution – a solution with a ________________ concentration of a particular substance
*Consider a concentrated solution that we add water to in order to make a dilute solution.

C

V

C

V
CONC
CONC
DIL
DIL
=
=
=
=
A. Simple Dilution of a Chemical in Solution
Example #1: If 400.0 mL of 0.800M HCl is added to 500.0 mL of water, what is the resulting [HCl] in the mixture?
B. Making a Dilute Solution from a Concentrated Solution
Example #2: What volume of 8.00 M H2O2 is used in making up 1.5 L of 0.50 M H2O2?
C. Mixing 2 Solutions with Different Concentrations
 treat mixtures of two solutions as two separate “single dilutions”
Example #3: If 300.0 mL of 0.350 M H2SO4 is added to 400.0 mL of 0.050 M H2SO4 what is the
,
resulting [H2SO4] in the mixture?
D. Mixing 2 Solutions with Mixed Solutions
 treat ions of mixtures of two solutions as separate “single dilutions”
Example #4: A 15.0 mL Sample of 3.0 HCl was added to 10.0 mL of 2.0 M CaCl2. Calculate the
concentration of each ion in solution. Assume no reaction occurs.
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