⚙️ how
How do indicators show whether a solution is acidic or basic?
Quick Answer
Indicators change color depending on pH. Common examples include litmus, universal indicator, and phenolphthalein.
The Full Story
Acid-base indicators are substances that change color when the pH of a solution changes. Litmus is one of the oldest and simplest indicators, turning red in acids and blue in bases. Universal indicator gives a wider color range across much of the pH scale. Many indicators are weak acids or bases themselves, and their molecular form changes color depending on hydrogen-ion concentration. This makes them useful in schools, labs, and titrations.
Key Facts
1.Litmus turns red in acid and blue in base
2.Universal indicator covers a broad pH range
3.Indicators are widely used in titrations
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Suggested video title for this topic:
"A liquid that tells you if it’s acidic just by changing color"
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