11a) 1.00 moles of lactic acid (HC2H5O3, Ka - 1.4 x 104) and 1.00 moles of...

Question

Question

11a) 1.00 moles of lactic acid (HC2H5O3, Ka - 1.4 x 104) and 1.00 moles of sodium lactate (NaC3H5O3) are dissolved in water r

12a) Metacresol is a pH indicator which changes from yellow to purple at pH = 8.2. Which statement is true of the solution at

5 pts 12b) Metacresol is a pH indicator which changes from yellow to purple at pH = 8.2. What is the K, of metacresol? a.7.9

Answer 1

Answer #1

lija Given; moles of lactic acid (HC H503) = 1. Ka = 1.4 x 104 we know. pka = -log oka = -logo (1.4x10²4) pra = 3+85] moles o

Answer 2

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