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Unformatted text preview: 3) Why is the vacuum filtering flask not connected directly to the vacuum? So that you cannot have water back up into the vacuum flask, contaminating your filtrate. 4) What is the “trap” and what’s its purpose? ________________________________________________________________ ________________________________________________________________ ________________ *Help: answers.yahoo.com...
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This note was uploaded on 09/25/2010 for the course CHE 1120 taught by Professor Brown during the Fall '10 term at St. John's.
- Fall '10