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Use a blue/ red litmus paper. When either turns red, it's acidic and blue is alkali.

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12y ago
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12y ago

By dissolving the pH solution a colour change will occur in the solution that should be tested.Compairing the colour of solution to the colours marked on of pH chart we can find out if the solution we tested is of alkaline nature or of acidic nature or neutral.Solutions of pH7are neutral solutions.Solutions below pH7 are acidic solutions and those above pH7 are alkaline solutions.

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13y ago

I don't know sorry I think you use a special coulour indicator

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15y ago

No problems: using a pH-meter or more simple with pH-papers (indicators).

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Q: How do you measure pH of a colourless solution?
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