Concept explainers
a.
Interpretation: The [H3O]+ of 0.05 M KOH should be determined.
Concept Introduction :
The water dissociation expression, Kwis given as:
Where square brackets indicate concentration.
The value of Kw is
b.
Interpretation: The pH of the 0.05 M KOH should be determined.
Concept Introduction :
- pH stands for "potential of hydrogen", it is a measure of alkalinity or acidity of water-soluble substances. pH number ranges from 0 to 14.
- pH is a logarithmic scale which specify the acidity or basicity of the solution.
pOH = -log [OH]-
pH + pOH = 14
c.
Interpretation: The pOH of the 0.05 M KOH should be determined.
Concept Introduction :
- pH stands for "potential of hydrogen", it is a measure of alkalinity or acidity of water-soluble substances. pH number ranges from 0 to 14.
- pH is a logarithmic scale which specify the acidity or basicity of the solution.
pOH = -log [OH]-
pH + pOH = 14
d.
Interpretation:
The balanced chemical equation for the KOH with H2SO4 should be determined.
Concept Introduction:
The balanced reaction is that
e.
Interpretation: The volume of KOH solution should be determined.
Concept Introduction :
A laboratory procedure said to be titration is used in which an acid sample is neutralized with a known amount of base and by using indicator in order to determine the end-point (generally determined by color change).
Using dilution law:
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Basic Chemistry
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