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Topic: Lime water  (Read 4210 times)

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Offline jameskin3e05

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Lime water
« on: November 12, 2007, 09:48:13 AM »
i carry a experiment which detect the presence of CO2 by using lime water

why did the old lime water would not turn milky when CO2 is present?
But if i use fresh lime water,it turn milky immediately
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Offline Borek

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Re: Lime water
« Reply #1 on: November 12, 2007, 10:12:51 AM »
Was your old lime water in contact with air?
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Offline jameskin3e05

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Re: Lime water
« Reply #2 on: November 12, 2007, 10:18:18 AM »
ya,sure
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Offline Borek

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Re: Lime water
« Reply #3 on: November 12, 2007, 12:21:20 PM »
What gases in the air?
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