How can you identify an unknown ph substance ?

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Spov
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#1
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#1
^^
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Monkey D. Luffy
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#2
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Spectrometry.
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Pigster
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Read the label on the bottle.
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Spov
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(Original post by Pigster)
Read the label on the bottle.
unknown ph substance

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Spov
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(Original post by Monkey D. Luffy)
Spectrometry.
Thanks
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Pigster
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Well, you probably wouldn't know what is was until you read the label.
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Spov
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(Original post by Pigster)
Well, you probably wouldn't know what is was until you read the label.

unknown ph substance
I just want to find out the ph , I don't need to know the substance.
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Spov
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#8
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Are there also other ways of finding out the ph other than Spectrometry ?
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Pigster
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Aha, you need to know the pH, rather than the substance.

UI will give you a rough value.

A pH meter/probe will give you a value (assuming it has been calibrated properly).

If it is a strong acid, I'd do a titration to find the concentration and from that you can calculate the pH.

If it is a weak acid, you'd have to find both the concentration AND the value of the Ka, then do the calculations. If you know what it is, you can look up the Ka on Wikipedia.
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