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21 December, 13:24

Explain why indicators are useful for measuring pH

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  1. 21 December, 16:02
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    pH indicators are weak acids that exist as natural dyes and indicate the concentration of H + (H3O+) ions in a solution via color change. A pH value is determined from the negative logarithm of this concentration and is used to indicate the acidic, basic, or neutral character of the substance you are testing.
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