Problem: Chloroacetic acid, ClCH2COOH, has a pKa of 2.87. What are [H3O+], pH, [ClCH2COO−], and [ClCH2COOH] in 1.25 M ClCH 2COOH?

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We are asked to calculate [H3O+], pH, [ClCH2COO], and [ClCH2COOH] in 1.25 M ClCH 2COOH


ICE Chart: 


Calculate x: 

Ka = [ClCH2COO][H3O+] [ClCH2COOH]10-pKa = [ClCH2COO][H3O+] [ClCH2COOH]10-2.87= [x][x][1.25-x]


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Problem Details

Chloroacetic acid, ClCH2COOH, has a pKa of 2.87. What are [H3O+], pH, [ClCH2COO], and [ClCH2COOH] in 1.25 M ClCH 2COOH?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Weak Acids concept. If you need more Weak Acids practice, you can also practice Weak Acids practice problems.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.