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Depending on the pH solutions have different colors with a pH paper.

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Q: How do you know why the universal indicator will be a certain colour?
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What colour would universal indicator be in caustic soda?

I really do not know


What do you use universal indicator solution for?

It is a chemical solution used for knowing the pH of a substance. Eg. You mix a drop of Universal indicator solution with approx 5 mL of the substance whose pH you want to know.You can compare the color with a standard pH chart and know the pH.


Is there a pH difference between tap water and pond water and rainwater If so what would account for it?

I'm almost certain there is a difference. If you want to find out the PH of each of them use universal indicator paper. then you will know whether each of them are an acid or a base.


Is there any colour that has not been discovered?

Yes. Imagine having a substance with an extremley high acidic content or alkalinic content. if a universal indicator is added, it MIGHT show an undiscovered colour. im not entirley sure if its true, but it is quite possible that there is a colour that the HUMAN RACE hasn't yet found out about. PS. sorry about the nerd speak.


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

Related questions

What is the colour of universal indicator in ethanoic acid?

orange and PH of 6


What colour would universal indicator be in caustic soda?

I really do not know


How do you know what a acid or a alkali is?

You use a universal indicator and it turns into whatever colour, according to the PH scale.


When do you know endpoint of titration?

when the colour of the indicator used is the color it should be in neutral


What test can you know if it is a acid or base?

use a universal indicator or add an acid to see the results


What colour would a neutral soloution become if universal indicator was added to it?

I don't know what you mean by "universal indicator". That's a generic term for a mixture of indicators that displays distinct colors over a fairly broad pH range, but without knowing which specific one you're using it's difficult to say. However, a lot of them are minor variations on Yamada's 1923 patent, so I'd expect that it would probably be somewhere in the greenish part of the spectrum. Exactly where depends on the particular ratios of the various indicator compounds used.


What do you use universal indicator solution for?

It is a chemical solution used for knowing the pH of a substance. Eg. You mix a drop of Universal indicator solution with approx 5 mL of the substance whose pH you want to know.You can compare the color with a standard pH chart and know the pH.


Is there a pH difference between tap water and pond water and rainwater If so what would account for it?

I'm almost certain there is a difference. If you want to find out the PH of each of them use universal indicator paper. then you will know whether each of them are an acid or a base.


What colour does hydrogencarbonate indicator turn with Nitrogen?

It would start off red i know & i think would turn yellow


How do you know if its alive?

Dead Starfish change colour when they die, if you have seen a Starfish in a certain colour, and then it's colour changes it has died. If you are not sure if a certain Starfish is dead and have never seen it in another colour, then it's going to be pretty hard to find out if it's dead or not, but most Starfish are red.


What happens to the indicator when a base is added?

There are a huge range of indicators that can be used in chemistry, but I presume you'll be using the basic 'universal indicator' here. A base will turn this indicator (depending on its strength) light/dark blue, or purple if it is quite strong. Or do you mean in terms of chemical reaction?


How can you know the pH of a drink?

You can learn the PH of a drink by adding the special indicator and it turns to a specific colour if it is red yellow or orang then it is a PH0 to a PH6 if it is grenn then it is a PH7 if it is a purple blue or navy colour then it is a PH8 to 14