Equivalence
The equivalence of any component is the number of equivalents of that component in 1000 cm3 (or 1 litre) of the total system.
You need to be able to calculate the equivalence of solutions.
What is the concentration expressed as Equivalence of a solution containing 46.0 grams of Sodium ions in 500 ml of solution?
Find out the gram equivalent of Sodium ions.
The valency of Sodium is 1 and its atomic weight is 23.0 g.
Thus the equivalent value for Sodium is 23.0/1 g = 23.0 grams.
The valency of Sodium is 1 and its atomic weight is 23.0 g.
Thus the equivalent value for Sodium is 23.0/1 g = 23.0 grams.
Find how many equivalents of Sodium there are in the 500 ml of solution.
Number of Equivalents = Total Mass of Sodium = 46.0
Sodium Gram Equivalent 23.0
Number of Equivalents = 2
Number of Equivalents = Total Mass of Sodium = 46.0
Sodium Gram Equivalent 23.0
Number of Equivalents = 2
Find how many equivalents of Sodium there are in 1 litre of solution.
500 ml of solution contains 2 equivalents. Thus:
1000 ml of solution contains 1000/500 x 2 Eq = 4 Eq.
The concentration of Sodium in the solution is 4 Equivalence.
500 ml of solution contains 2 equivalents. Thus:
1000 ml of solution contains 1000/500 x 2 Eq = 4 Eq.
The concentration of Sodium in the solution is 4 Equivalence.
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