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Why indicator only be used 1-2 drops only during the experiment of acid and base?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoas the indicator reacts with the acid/base the pH changes slightly, the more you add the more it changes.
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Why is it that 2 or 3 drops of the indicator is added during titration of acid and base?
To see where the equivalent point is
Why is phenolphthalein used in the titration experiment?
it is used as an acid-base indicator
Why is phenolphthalein is used in titration experiment?
it is used as an acid-base indicator
What is an acid reaction?
If you have an acid of unknown strength, you add Universal Indicator & add drops of a base. Count the drops of the base until the solution turns green (neutral) This should tell you how strong the acid is. This can also be done the other way (with a base of unknown strength & adding an acid) Does that make sense?
Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
carbon dioxide is used during photosynthesis
Why is it that 2 or 3 drops of the indicator is added during titration of acid and base?
To see where the equivalent point is
Why is phenolphthalein used in the titration experiment?
it is used as an acid-base indicator
Why is phenolphthalein is used in titration experiment?
it is used as an acid-base indicator
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 is an acid reaction?
If you have an acid of unknown strength, you add Universal Indicator & add drops of a base. Count the drops of the base until the solution turns green (neutral) This should tell you how strong the acid is. This can also be done the other way (with a base of unknown strength & adding an acid) Does that make sense?
What is the indicator of acid?
The indicator of acid is baking soda.
Carbon dioxide is passed into a solution of bromthymol blue indicator until the acid solution turns yellow A sprig of elodea is placed into yellow solution and it turns blue purpose of experiment is?
carbon dioxide is used during photosynthesis
How does the SN1 reaction in this experiment cause the acid-base indicator phenolphthalein to change color?
The displacement of chloride or bromide by and iodine ion in an acetone based solution will cause this type of reaction to happen in this experiment.
Show by experiment that how plants are useful indicator species for acid rain pollution?
Lichens are a good indicator species for acid rain. Lichens absorb water and nutrients from the air. They absorb the nutrients that they need from the water. Rainwater contains enough sulphur dioxide to make them stop growing.
How do you a prepare ferric alum indicator?
dissolve 40 grams of ferric ammonium sulphate in 100ml distilled water and add few drops of 6N nitric acid
What is the purpose for using phenolphthalein for an acid base titration?
It's the colour indicator you watch for during the titration.
Why sodium carbonate cann't be used as a primary standard in propanoic acid?
Sodiumj carbonate is a weak alakli and propanoic acid is a weak acid so you cannot use a weak acid and a weak alkali in an experiment as they wouldn't react properly. It would be difficult to find the indicator.
