To enter your answers in the scientific format use the

Question

To enter your answers in the scientific format use the exponential "E" notation to represent "times ten raised to the power of", followed by the value of the exponent. Example: 0.032 or 3.2 x 10^-2would be 3.2E-02 where "E" stands for (x 10^y).

a) What is the concentration of a lactic acid buffer (pK_a= 3.9) that contains 4.201 M of CH₃CH(OH)COOH and 4.201 M of CH₃CH(OH)COO^-? Give your answer using 2 decimal points.

Final Concentration of lactic acid buffer = (M)

b) What is the pH? (Give your answer using 1 decimal point.) pH =