izabellehannah3363 izabellehannah3363
  • 10-03-2020
  • Chemistry
contestada

If a buffer solution is 0.130 M 0.130 M in a weak acid ( K a = 1.4 × 10 − 5 ) Ka=1.4×10−5) and 0.540 M 0.540 M in its conjugate base, what is the pH ?

Respuesta :

emaikwuvictor
emaikwuvictor emaikwuvictor
  • 12-03-2020

Answer: pH= 0.68015

Explanation:

From the question,

pKa= 1.5×10-5, [salt]= 0.54M, [ acid]=0.13M

Using the Henderson Hasselbalch equation

pH= pKa + log[salt/acid]

pH=1.4×10-4+ log[0.54/0.14]

pH= 0.000015+ 0.618

pH=0.68015

Answer Link

Otras preguntas

Hi right now im doing homework about common denominators and for some reason I cant understand how to do it
How do you physically separate NaCl
the Alvarez family bought a car for $2,000 they made a down payment of $500 if they want to pay the balance in 5 equal payments how much would each of these pa
Why was the civil service system reorganized in the late 1800s? A)two new agencies were created: The office of personnel management and merit system protection
Which of the following topics would lend itself only to a formal style of writing? A. Why Living in the Country Is Better Than Living in the City B.
How does the reader best know that Louis Pasteur's treatment for rabies worked? a. The text says that Joseph's mother had tears in her eyes. b. The text says th
Which is bigger 73% or 37/50
The following question refers to "The Emperor's New Clothes": Which of the following proverbs represents a moral of this story? The early bird catches the worm.
when working on word processor document,the del key does what
The book that first brought recognition to Mark Twain was ______. A Connecticut Yankee in King Arthur's Court Innocents Abroad Tom Sawyer