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=== How is the pH of a solution measured? === | === How is the pH of a solution measured? === | ||
The pH of a solution can be measured by using a [[pH indicator]] like a [[litmus]] paper. A litmus paper dyed blue will change its colour to red when exposed to an acidic solution. Similarly, a litmus paper dyed red will change its colour to blue when exposed to a basic solution. The litmus will be purple when a neutral solution is used. For industrial and laboratory experiments, a [[pH meter]] is used. | The pH of a solution can be measured by using a [[pH indicator]] like a [[litmus]] paper. A litmus paper dyed blue will change its colour to red when exposed to an acidic solution. Similarly, a litmus paper dyed red will change its colour to blue when exposed to a basic solution. The litmus will be purple when a neutral solution is used. For industrial and laboratory experiments, a [[pH meter]] is used. | ||
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