0
Why do you add indicator in mid way of titration of residual chlorine?
Wiki User
∙ 13y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the titration flask?
It is the conical flask in which the solution from the burette flows into and which you add the indicator into.
How do you determine free chlorine in Hydrochloric acid?
Iodometric titration. Dill. with diss.water.Then add Cryst. or 0,5g/ml KJ (1ml) then titr. 0,01 M Na2S2O3
How do you determine the end point from titration in acid base titration process?
it depends on the indicator used, i.e. phenolphthalein is the most popular. this is colourless in acid, purple in base, very identifiable. Keep actively swirling and when it is expected to turn (figured from a rough titration beforehand) add very slowly dropwise untill the colour turns.
Why is indicator added to a pipette solution before titration?
I'm not sure what you really mean. There wouldn't be any point adding it afterwards! It's there to reveal the end point of your titration. You could add it when you thought you were near the end point, but it's easier to put it in before you start.
Your pool is clear but will not register chlorine?
How old are the test solutions or test strips? Replace if left in the sun or more than a year old. Do you have a chlorine odor? If yes, shock. Has the filter been cleaned recently? If not, clean. Do you have a chlorine stabilizer or conditioner added to the pool? If not add until residual is about 50 to 70 ppm. Add more chlorine and test for correct pH and alkalinity. Adjust if needed. Increase time on pump for the summer. Ken
What is the titration flask?
It is the conical flask in which the solution from the burette flows into and which you add the indicator into.
Can you add a salt water system to an already chlorinated pool?
Yes, just install the chlorine generator and add the salt. Your new system will replace the need for residual chlorine.
Why is a small amount of indicator added during titration?
An indicator shows when we have added just enough of the second reagent to react with the first. If you mean why do we add only a small amount of indicator, it is to keep the answer accurate. Some of the reagent is used changing the indicator so the answer is always slightly bigger than perfection, and the more indicator you add, the larger the error.
How do you determine free chlorine in Hydrochloric acid?
Iodometric titration. Dill. with diss.water.Then add Cryst. or 0,5g/ml KJ (1ml) then titr. 0,01 M Na2S2O3
How do you determine the end point from titration in acid base titration process?
it depends on the indicator used, i.e. phenolphthalein is the most popular. this is colourless in acid, purple in base, very identifiable. Keep actively swirling and when it is expected to turn (figured from a rough titration beforehand) add very slowly dropwise untill the colour turns.
Why is indicator added to a pipette solution before titration?
I'm not sure what you really mean. There wouldn't be any point adding it afterwards! It's there to reveal the end point of your titration. You could add it when you thought you were near the end point, but it's easier to put it in before you start.
How could you determine whether phenolphthalein remains in the residue of a titration reaction?
The easiest way is to add back some of the solution you were titrating. If phenolphthalein remains, it will react with the solution and change back to purple. Incidentally, phenolphthalein will always remain in the solution of the titration reaction - it changes color depending upon the pH of the solution, but the indicator itself is not affected by the titration reaction.
Why were you instructed to keep swirling the flask?
To mix the reactants. Assuming you have been doing a titration experiment and I am doing your homework its so as you add the acid/alkali you can accuratly close the biuret when the indicator changes colour.
Your pool is clear but will not register chlorine?
How old are the test solutions or test strips? Replace if left in the sun or more than a year old. Do you have a chlorine odor? If yes, shock. Has the filter been cleaned recently? If not, clean. Do you have a chlorine stabilizer or conditioner added to the pool? If not add until residual is about 50 to 70 ppm. Add more chlorine and test for correct pH and alkalinity. Adjust if needed. Increase time on pump for the summer. Ken
Why do you swirl the Erlenmeyer flask?
To mix the reactants. Assuming you have been doing a titration experiment and I am doing your homework its so as you add the acid/alkali you can accuratly close the biuret when the indicator changes colour.
Can you add chlorine granules and algecide together?
Yes, you can add chlorine granules and algecide.
Why add excess KI in iodometric titration?
excess KI
