Lactic acid, HC3H5O3, is a monoprotic acid that dissociates in an aqueous solution, as presented by the equation above. Lactic Acid is 1.66 percent dissociated in a 0.50 M at 25°C. For all parts, assume the temperature remains at 25°C. a. Write the expression for the acid-dissociation constant, Ka, for lactic acid and calculate its value. b. Calculate the pH of 0.50 M HC3H5O3

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Lactic acid, HC3H5O3, is a monoprotic acid that dissociates in an aqueous solution, as
presented by the equation above. Lactic Acid is 1.66 percent dissociated in a 0.50 M at
25°C. For all parts, assume the temperature remains at 25°C.
a. Write the expression for the acid-dissociation constant, Ka, for lactic acid and
calculate its value.
b. Calculate the pH of 0.50 M HC3H5O3
Transcribed Image Text:Lactic acid, HC3H5O3, is a monoprotic acid that dissociates in an aqueous solution, as presented by the equation above. Lactic Acid is 1.66 percent dissociated in a 0.50 M at 25°C. For all parts, assume the temperature remains at 25°C. a. Write the expression for the acid-dissociation constant, Ka, for lactic acid and calculate its value. b. Calculate the pH of 0.50 M HC3H5O3
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