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Why is it that 2 or 3 drops of the indicator is added during titration of acid and base?
Wiki User
∙ 12y ago
To see where the equivalent point is
Wiki User
∙ 12y ago
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Why are only a few drops of indicator used in a titration?
Answer this question... dnt know
Which indicator is suitable for the titration of washing soda against HCL and why?
iv done the titration and the preferred indicator for such a solution is phenalphaline, use a few drops to make it go a bright luminous pink and titrate till clear, not 'cloudy'
How much phenolphthalein indicator should be used?
A few drops of any indicator is generally enough to get a reading.
Metacresol purple is an indicator that changes from yellow to purple at pH 8.2. what is Ka for this indicator and it's pH range and color of the solution with pH 9.0 and few drops of Metacresol purple?
6.3x10-9
Why indicator only be used 1-2 drops only during the experiment of acid and base?
Because that is all you need; any more and it can make it harder to see some of the changes, as the substance shall end up too dark. Plus it'll just be a waste of indicator. That's what my science teacher's taught me in the past.
Why are only a few drops of indicator used in a titration?
Answer this question... dnt know
Which indicator is suitable for the titration of washing soda against HCL and why?
iv done the titration and the preferred indicator for such a solution is phenalphaline, use a few drops to make it go a bright luminous pink and titrate till clear, not 'cloudy'
How much phenolphthalein indicator should be used?
A few drops of any indicator is generally enough to get a reading.
Why is it that during titration of iodine or triiodine with thiosulphate the starch indicator should not be added until near the end point?
The Starch-Iodide complex is not very soluble in water, so the starch is added near the endpoint of an Iodine titration, when the Iodine concentration is low. This eliminates errors due to the fact that some Iodine may remain adsorbed on the complex and go undetected. so if you add the starch indicator only right near the end point when the solution is a light yellow colour the starch shouldn't complex and go lumpy.
If a few drops of universal indicator is added to water changes red what pH value is it?
Its Ph value is less than 7, so it is acidic. The exact colour change needs to be compared visually with a standard universal indicator chart to determine the precise Ph value associated with that particular shade of red.
When does animals body temperature drops?
It drops during hibernation
How can you find out how acidic somethig is?
use the pH scale by adding 1 or 2 drops of universal indicator in an acid or an alkali
What cation is present with a few drops of KSCN added to water?
bill
Metacresol purple is an indicator that changes from yellow to purple at pH 8.2. what is Ka for this indicator and it's pH range and color of the solution with pH 9.0 and few drops of Metacresol purple?
6.3x10-9
What is universal indicator?
It is a substance used to determine the strengths of acids and alkali.It changes color according to the pH of the material its in. It is so useful because the color also tells you how strong the substance is. As an example, if you were to put a few drops of the indicator in water it would go green. A few drops of it in cleaning products and it would go a deep purple.A universal indicator can give various colors to a huge variety of pH ranges.
What can affect purity of aspirin?
Firstly place 100 to 150 mg of aspirin into a 125 ml conical flask. Next proceed to mix in 15 ml of 95% ethanol solution and add 2 drops of phenolphthalein indicator. Then use the titration method to mix this solution against a standard solution of sodium hydroxide from a burette. Using the value obtained from the titration calculate the molarity of the aspirin. Then calculate the ratio of the observed molarity of aspirin with its theoretical molarity and finally multiply this ratio with 100 to obtain the percentage purity of the aspirin sample.
When do you do the first oil change in a 2010 Honda civic?
I believe you should wait until the service indicator drops to around 15%.
