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Thread: Anyone know how to solve this chemistry problem?

  1. #1
    Jules's Avatar
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    Anyone know how to solve this chemistry problem?

    'What is the molarity of an NaOH solution if 15.0mL is exactly neutralized by 7.5 mL of a 0.02 M HC2H3O2 solution'
    My teacher told us the answer is 1M, but I keep getting .01 for my answer and have no clue what I'm doing wrong. My work is:
    (15.0mL)(x)=(7.5mL)(.02M)

  2. #2
    Attack's Avatar
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    You are right, it's 0.01 M

    moles acid = 7.5mL * 0.02 M=0.15
    M = 0.15/15 = 0.01

  3. #3
    derpherpherp's Avatar
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    Actually, pretty sure .01M is correct.
    (oops, beat to it, but your set-up is correct. Bug your teacher about it)

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    Jules's Avatar
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    Wow, glad my teacher with a phd gave me the wrong answer. Thanks everyone! (:

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