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    josesaltos's Avatar
    josesaltos Posts: 1, Reputation: 1
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    #1

    Mar 21, 2007, 01:46 PM
    Making buffers!
    How do I make a bicarbonate buffer pH 9
    Evil dead's Avatar
    Evil dead Posts: 116, Reputation: -5
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    #2

    Mar 21, 2007, 03:36 PM
    Buffer (69.25ml of Na2HPO4, 30.75ml of Citric Acid) pH 6.4 (5ml per test tube)

    So an accurate prediction of pH 9 would be 90.00ml of Na2HPO4 and 10.00ml of Citric Acid
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