Question
In the laboratory, a general chemistry student measured the pH of a 0.391 M aqueous solution...
In the laboratory, a general chemistry student measured the pH of a 0.391 M aqueous solution of formic acid, HCOOH to be 2.062. Use the information she obtained to determine the Ka for this acid. Ka(experiment) =
Homework Answers
Answer #1
Initial concentration of HCOOH is 
pH of solution is 2.062
But 
But since 
is very small, we approximate 
Hence, 
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