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What happens at the molecular level when the equivalence point is reached during the titration of the sulfuric acid H2S04 and potassium hydroxide KOH?
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Determination the concentration of concentrated hydrochloric acid?
Method: titration with a standardized solution of sodium (or potassium) hydroxide.
What is titration error?
Titration error is simply the difference between the end point of a titration and the equivalence point of it. It can mathematically defined as Error = Vol(End Point) - Vol(Equivalence Point)
Where is the buffer region in a titration curve for the titration of a weak acid with a strong base?
It is the nearly horizontal region before the equivalence point.
What is the difference between the end point in a titration and the equivalence point?
These terms are synonyms.
What is the purpose of a titration?
The purpose of a titration is to find the equivalence point (stoichiometric point) of a solution. At the equivalence point, the moles of the titrant and analyte are equal to one another. At the midpoint of the solution, the pKa value is equal to the pH value.
How do you determine the concentration of concentrated hydrochloric acid?
Method: titration with a standardized solution of sodium (or potassium) hydroxide.
Determination the concentration of concentrated hydrochloric acid?
Method: titration with a standardized solution of sodium (or potassium) hydroxide.
In a titration when the number of moles of hydrogen ions equals the number of moles of hydroxide ions what is said to have happened?
the equivalence point has been reached
What is titration error?
Titration error is simply the difference between the end point of a titration and the equivalence point of it. It can mathematically defined as Error = Vol(End Point) - Vol(Equivalence Point)
What is the chemical process for back titration?
The chemical process for back titration is to titrate the analyte past the original end point/equivalence point, and then BACK titrate the excess titrant to equivalence.
What is the difference between the end point and the equivalence point?
The equivalence point is the point in a titration when the amount of added standard reagent is chemically equal to the amount of analyte. The end point is the point in a titration when a physical change occurring immediate after the equivalence point
Why does the pH change rapidly at the equivalence point of a titration?
The equivalence point represents a region where the amount of acid to base (or base to acid) concentration is equal. Before the equivalence point there is a greater amount of acid (or base, depending on the titration). After the titration there is a greater amount of base (or acid). This reverse in dominance results in a dramatic change in pH.
Where is the buffer region in a titration curve for the titration of a weak acid with a strong base?
It is the nearly horizontal region before the equivalence point.
What is the difference between the end point in a titration and the equivalence point?
These terms are synonyms.
What is the purpose of a titration?
The purpose of a titration is to find the equivalence point (stoichiometric point) of a solution. At the equivalence point, the moles of the titrant and analyte are equal to one another. At the midpoint of the solution, the pKa value is equal to the pH value.
What is endpoint in titration?
The endpoint of a titration is when the indicator first changes in appearance, or when an instrument first gives a reading which indicates that the titration is finished. The endpoint is always slightly after the equivalence point.
Balanced equation for potassium carbonate?
Perform a acid-base titration with a strong acid with a known concentration. Don't forget to measure the exact mass or the molarity of KOH/K2CO3.Repeat this determination several times to find the right equivalence point, this is important by these kind of quality controls. Then you can calculate the molar ratio of KOH/K2CO3.(V*C)acid = (V*C)base C= concentration and V = volume
