If the ph of hc3h5o2 is 4.2 and the ka 1.34x10^-5, what is the equilibrium concentration

Question

15-05-2018
Chemistry

contestada

If the ph of hc3h5o2 is 4.2 and the ka 1.34x10^-5, what is the equilibrium concentration

Respuesta :

Otras preguntas

Frank is putting up a wallpaper in his bedroom. His bedroom measures 1 1/8 feet long and 9 3/4 feet wide. What is the perimeter of Franks bedroom?

Use elimination to solve the system:6x-4y=6-6x+3y=0

2loga(3)+loga(5)=loga(x)

Tickets to a play cost $14 each by mail, plus a $2 processing fee for each order or one or more tickets. Write a rule to describe the total cost as a function o

If the potential energy and the kinetic energy are not the same, where did the leftover energy go?

what is 7/12 as a percent?

the water pipe has a radius of 5 cm and a height of 7 cm. what volume of water does it take to fill the pipe?

how do you unscramble the science topic atsetlectoicnp

ChemistryHelper2024 ChemistryHelper2024 · Answer 1 · 2018-05-24T11:16:47+02:00

ChemistryHelper2024 ChemistryHelper2024

24-05-2018

CH₃CH₂COOH + H₂O ↔ CH₃CH₂COO⁻ + H₃O⁺

pH = 0.5 pKa + 0.5 pCa
0.5 pCa = pH - 0.5 pKa
= 4.2 - (0.5 * (-log 1.34 x 10⁻⁵)) = 1.76
pCa = 3.53
Ca = antilog - 3.52 = 3 x 10⁻⁴
where Ca is the acid concentration

Answer Link