Talk:Litmus test (chemistry)

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Method of measuring ph value using litmus papers

on my report it says place a fresh piece of blue litmus paper in a becker of water.using a straw,blow gently into the water for several minutes,until a change in the litmus paper occurs.what does the change show about exhaled breath when it dissolves in water?

And what do you want to know?T.vanschaik 21:53, 23 October 2006 (UTC)

If you exhale into the water and it shows an acidic change, it's likely carbonic (or should that be carboxylic? I forget) acid formed by the dissasociation of CO2 in water. 69.210.62.227 04:45, 30 November 2006 (UTC)