How many grams of lactic acid must be added


1-Chloroacetic acid, ClCH2COOH, has a pKa of 2.87. What are [H3O+], pH, [ClCH2COO- ], and [ClCH2COOH] in 1.71 M ClCH2COOH?
[H3O+]= M
pH=
[ClCH2COO- ]= M
[ClCH2COOH]= M

2- A 0.037 M solution of a weak acid (HA) has a pH of 3.20. What is the Ka of the acid?
Ka =

3-Lactic acid, CH3CH(OH)COOH, has a Ka value of 1.4x10-4. How many grams of lactic acid must be added to make 197.0 mL of solution with a pH of 2.17?

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Chemistry: How many grams of lactic acid must be added
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