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    chemhelp123456's Avatar
    chemhelp123456 Posts: 1, Reputation: 1
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    #1

    Jun 15, 2011, 05:15 PM
    An unknown dissolves in water
    An unknown dissolves in water to give a solution with a pH of 4. Is washing soda a possible candidate for the unknown? Why or Why not?
    jcaron2's Avatar
    jcaron2 Posts: 986, Reputation: 204
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    #2

    Jun 15, 2011, 06:03 PM
    If the pH is 4, what does that tell you about whether the substance was an acid or a base? Would washing soda result in a pH of 4?
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