What is an indicator for acid and bases?

Answer 1

There are three types of substances acids, bases, and neutrals. The properties of an acid include they are sour, have a PH of less then 7, corrosive to skin, contains hydrogen, and reacts to litmus paper.

Answer 2

A pH indicator is a substance that changes colour depending on the acidity of the environment that it is exposed to. The main property of a pH indicator is that it should change colour between two different pH reading. (E.g. phenolophatlein is an indicator that is colourless if the pH<8.3 and pink is the pH>10.0). It should be consistent at producing the same colour each time it is exposed to environments of the same pH. Another property of an indicator is that it should be safe to use in a laboratory setting. Ideally, a pH indicator should also be cheap and affordable as routine testing is often done. A pH indicator should not change the nature of the tested substance significantly.

Answer 3

1.exist in different colours in either the acid or the base

2.they have pka corresponding the acid or base being titrated

3.they weak acids or bases

Answer 4

*sour tase

*turns blue litmus paper red

Answer 5

They must be able to change colour in different concentrations of H3O+ i.e. They need to be able to change colour to show which substance is an acid and which is a base.

Answer 6

An indicator is used to detect the presence of acid or base. The examples of indicators are litmus paper, methyl orange etc.

Answer 7

For example a sudden change of color when the pH of a solution changes.

Answer 8

Hair, a brain, organs, ans toenails