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Topic: Water Hardness  (Read 3642 times)

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Offline portugal

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Water Hardness
« on: May 16, 2007, 04:55:07 AM »
Explain why boiled samples would be gravity filtered in determiantion of permanent hardness??
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Offline AWK

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Re: Water Hardness
« Reply #1 on: May 16, 2007, 07:06:54 AM »
Quote from: portugal on May 16, 2007, 04:55:07 AM
Explain why boiled samples would be gravity filtered in determiantion of permanent hardness??
Think about  chemical reaction during boiling, and about method of hardness determination
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