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When there is a buffer present, the buffer makes it difficult to change the pH of a solution.
Say for instance a buffer keeps the pH around 6.5 +/- 0.2 .
The buffer only works when the pH is in this range.
If too much acid or too much base is added, taking the pH out of this range the pH will change quickly, even if only a little extra base or acid is added to the solution.
What else can I help you with?
Describe a method to visually detect the end point of a titration without the use of instruments?
The method used most often in chemistry labs is by use of a pH indicator in the sample being titrated. When you reach the titration point, the indicator will change colors, demonstrating the end point of the titration.
The point at which a drop of base changes the color of an acid solution and the color persists?
This point is known as the endpoint in a titration. It signifies that the reaction between the acid and base is complete. The color change usually happens due to the addition of an indicator, which changes color at a specific pH.
What will happen to the molarity of NaOH If a drop of NaOH falls out of the flask during the titration?
You have to realise that a drop from the burette for instance is insignificant, if you are dealing with at least 10ml solution which you usually deal with on a titration. If you don't want to regard it as insignificant, then if NaOH is in the burette, then the solution doesn't become more concentrated with NaOH because that drop escaped.
What is the meaning of the term end point in titration and what is true about the system at the end point?
In titrations, the end point is when you have brought the tested sample to absolute neutral. At this point, if you add one more drop of titrating solution to the sample, you would change the pH sufficient to change the color of the indicator in the sample. This is the point at which you can determine the pH of the original solution, by calculating back the amount of titrating solution you had to add to the sample to neutralize it.
Why KmnO4 is used as self indicator?
As we all know that the potassium permanganate (KMnO4) is the dark purple color solution ...and in titration it become colorless ....so when the titration is completed ...and the other single drop of KMnO4 solution produce pinkish colour in a beaker ...which indicate that the reaction was completed just a single drop before .. we use indicator in a a reaction in order to indicate ...but we dont used indicator in titration with KMnO4 because it also indicate us by changing its color ...colorless to pink
Why need to add reagent drop by drop during titration?
Adding reagent drop by drop during titration allows for precise control of the reaction and helps prevent over-titration. This ensures that the endpoint is accurately determined and the titration results are as precise and reliable as possible.
Describe a method to visually detect the end point of a titration without the use of instruments?
The method used most often in chemistry labs is by use of a pH indicator in the sample being titrated. When you reach the titration point, the indicator will change colors, demonstrating the end point of the titration.
In a titration the point at which one drop of base turns the acid plus indicator a pink color that lasts for 30 seconds is called the?
This point is called the endpoint of the titration. It is the stage at which the reaction between the acid and base is considered complete, based on the color change of the indicator.
The point at which a drop of base changes the color of an acid solution and the color persists?
This point is known as the endpoint in a titration. It signifies that the reaction between the acid and base is complete. The color change usually happens due to the addition of an indicator, which changes color at a specific pH.
What will happen to the molarity of NaOH If a drop of NaOH falls out of the flask during the titration?
You have to realise that a drop from the burette for instance is insignificant, if you are dealing with at least 10ml solution which you usually deal with on a titration. If you don't want to regard it as insignificant, then if NaOH is in the burette, then the solution doesn't become more concentrated with NaOH because that drop escaped.
Why the titration process should be done drop by drop?
Around the expected equivalence point of the titration, you need to drop the solution very slowly and mix the solutions very well because, around the equivalence point, just one drop of solution from the buret can make a radical pH change in the mixed solution. If the color of the solution in the erlenmeyer flask changes, record the volume of the solution in the buret and add a few drops of the solution to make sure the the equivalence point you found is correct.
Why is it important to obtain the end point with just one drop from the burrete?
Obtaining the endpoint with just one drop from the burette helps increase the accuracy of the titration. This minimizes the chances of overshooting the endpoint and ensures precise determination of the volume of titrant needed to reach the endpoint. It also reduces the margin of error in the titration results.
How do you get sharp end point in acid-base titration?
To get a sharp end point in an acid-base titration, it is important to add the titrant (acid or base) drop by drop near the expected end point, which is determined using an indicator. The indicator will change color when the solution reaches the end point, indicating that the reaction is complete. Slowly adding the titrant near the end point helps to achieve a sharp color change and precise determination of the equivalence point.
Why you use tritation?
there are many uses of titration..to know the volume of one drop of a liquid..
What is the name of the process when you combine an acid with a base?
Titration. You add it one drop at a time...
What is the meaning of the term end point in titration and what is true about the system at the end point?
In titrations, the end point is when you have brought the tested sample to absolute neutral. At this point, if you add one more drop of titrating solution to the sample, you would change the pH sufficient to change the color of the indicator in the sample. This is the point at which you can determine the pH of the original solution, by calculating back the amount of titrating solution you had to add to the sample to neutralize it.
Can a strong base be a biurette solution in titration?
Yes, a strong base can be used as the titrant solution in a titration, typically in an acid-base titration. The strong base is gradually added from the burette to neutralize the acid in the solution being titrated. This allows for the determination of the unknown concentration or volume of the acid solution.
