What is acid base indicator in chemistry?
What is acid base indicator in chemistry?
A substance week acid or week base which has different colour in acid or base solution . the colour change is due to a marked difference in colour between the undissociated and ionic forms . for a good indicator , the colour change must occur between narrow limits of ph that is methyl orange is red. at ph 3.1 and change to yellow at ph 4.4.
An acid-base indicator is either a weak acid or weak base that exhibits a color change as the concentration of hydrogen (H+) or hydroxide (OH-) ions changes in an aqueous solution. ... They are also used to gauge pH values and for interesting color-change science demonstrations.
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