Wednesday 14 March 2012

Solution Stiochiometry

What is Solution Stiochiometry? : Solution stoichiometry deals with reactions in solutions.



Types of Solution Reactions
   - Precipitation
   - Acid-base
   - Oxidation-reduction
   - Titrations

Example:
100 mL of 0.250 M Iron (II)chloride reacts with excess copper. How many grams of Iron are produced?

FeCl2 + Cu----> Fe + CuCl2

0.250 mol    x 0.100 L x 1     x 55.8 g  = 0.0250g 
           L                          1         mol


Example:
A beaker contains 100 mL of 1.5 M Hcl. Excess Zinc added to the beaker. Determine how many litres of hydrogen gas should be produced.

2HCl + Zn ---> H2 + ZnCl2

1.5 mol    x 0.100L x 1   x    22.4 L  = 1.68 L
        L                        2         mol     = 1.7 L



Here is a step-by- step video that shows you how to solve solution stoichiometry problems


Just in case if you didnt understand the previous video...




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