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Equivalent mass is determined because acid-base reactions involve the transfer of protons, not just the complete molecules of the acid and base. Equivalent mass takes into account this stoichiometry and allows for accurate calculations of the amount of acid or base reacting in the titration. Molar mass, on the other hand, only considers the total mass of the entire molecule, which may not reflect the true amount of substance reacting in the titration.
What else can I help you with?
A 0.361 molar solution of the weak acid HA with a pKa of 4.039 is titrated with a 0.163 molar solution of NaOH. What is the pH of the solution at the equivalence point of this titration?
At the equivalence point of the titration, all the weak acid HA has been neutralized by the strong base NaOH. This results in the formation of the conjugate base A-. The pH at the equivalence point of this titration would be determined by the salt formed by the reaction of the weak acid and strong base, and can be calculated using the Henderson-Hasselbalch equation.
How do you determine the pka of oxalic acid?
To determine the pKa of oxalic acid, you can perform a titration experiment. By titrating a solution of oxalic acid with a strong base such as sodium hydroxide (NaOH) and monitoring the pH changes, you can identify the point where the acid is half-neutralized and calculate the pKa value. This is typically done using a pH meter or pH indicator to track the changes in acidity as the titration progresses.
How is oxalic acid vs NaOH titration different from oxalic acid vs potassium permegnate titration?
In the titration of oxalic acid with NaOH, the acid-base reaction involves the neutralization of the acid by the base. However, in the titration of oxalic acid with potassium permanganate, the permanganate ion oxidizes the oxalic acid to carbon dioxide. This difference in reaction mechanisms leads to different equivalence points and color changes in the two titrations.
What are different types of titration?
There are several types of titration techniques, including acid-base titration (determining the concentration of an acid or base), redox titration (determining the concentration of oxidizing or reducing agents), complexometric titration (determining the metal ion concentration using a complexing agent), and precipitation titration (determining the concentration of a dissolved substance by precipitating it).
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.
How is the neutralization point in acid and base titration determined pH metrically?
The neutralization point in acid and base titration can be determined metrically using the PH meter.
What is hypothesis of a acid base titration?
The hypothesis of an acid-base titration is that the volume of the acid solution needed to neutralize a base solution is stoichiometrically equivalent to the volume of the base solution required to neutralize the acid. This forms the basis for determining the unknown concentration of an acid or base by titration.
A 0.361 molar solution of the weak acid HA with a pKa of 4.039 is titrated with a 0.163 molar solution of NaOH. What is the pH of the solution at the equivalence point of this titration?
At the equivalence point of the titration, all the weak acid HA has been neutralized by the strong base NaOH. This results in the formation of the conjugate base A-. The pH at the equivalence point of this titration would be determined by the salt formed by the reaction of the weak acid and strong base, and can be calculated using the Henderson-Hasselbalch equation.
How is the endpoint of a titration between H3PO4 and NaOH determined?
The endpoint of a titration between H3PO4 (phosphoric acid) and NaOH (sodium hydroxide) is determined by using an indicator that changes color when the reaction is complete. This indicator helps to visually identify when the acid and base have reacted in the correct proportions, indicating the endpoint of the titration.
What are the procedures of total base number test?
The Total Base Number (TBN) is determined by titration with an acid as the perchloric acid.
Difference between acid base titration and redox titration?
In acid-base titration, the reaction involves the transfer of protons between the acid and base, with the endpoint usually determined by a pH indicator. Redox titration, on the other hand, involves the transfer of electrons between the oxidizing and reducing agents, with the endpoint typically determined by a change in color or potential. Acid-base titrations are used to determine the concentration of acids or bases, while redox titrations are to determine the concentration of oxidizing or reducing agents.
What is an indicator in an acid base titration?
An indicator is a substance that changes color in response to a change in pH during an acid-base titration. It is used to signal the endpoint of the titration when the amount of acid or base added is stoichiometrically equivalent to the amount of the other reactant. Common indicators include phenolphthalein, methyl orange, and bromothymol blue.
What are the examples of acid base titration?
Determination of the concentration of a base by titration with acids or determination of the concentration of an acid by titration with bases. (http://en.wikipedia.org/wiki/Acid-base_titration)
What is equivalent mass of sulfuric acid?
The equivalent mass of sulfuric acid (H2SO4) is calculated as its molar mass divided by the number of replaceable hydrogen ions it can donate. Since sulfuric acid can donate 2 hydrogen ions (H+), the equivalent mass is half of the molar mass. Therefore, the equivalent mass of sulfuric acid is approximately 49 g/mol.
Which of the following is titrated using strong bases?
Titration is the controlled neutralisation of an acid and a base. If the titration is done using a weak acid and a strong base, it can be analysed in detail and all concentrations of the aqueous species at any volume addition of the titrant can be determined.
Titration of an acid with a standard base?
During titration, a standard base is slowly added to an acid solution until the equivalence point is reached. At this point, the moles of acid and base are stoichiometrically equivalent. An indicator is often used to signal when this point is reached, allowing for the determination of the acid concentration.
How strong is 6N HCl?
6N HCl refers to a 6 molar solution of hydrochloric acid. The strength of the acid solution is determined by its concentration. It is a moderately strong acid that can cause skin irritation and burns upon contact.
