shania993 shania993
  • 19-09-2016
  • Chemistry
contestada

What is the approximate pH of a .06 M solution of CH3COOH given that Ka= 1.78*10-5

Respuesta :

Yipes
Yipes Yipes
  • 19-09-2016
CH₃COOH ⇔ CH₃COO⁻ + H⁺

[CH₃COO⁻] = [H⁺] = x

[tex]K=\frac{|CH_{3}COO^{-}|*|H^{+}|}{|CH_{3}COOH|}=\frac{x^{2}}{|CH_{3}COOH|}\\\\ 1,78*10^{-5}=\frac{x^{2}}{0,06} \ \ |*0,06\\\\ 0,1068*10^{-5}=x^{2}\\\\ x_{1}\approx0,001 \ \land \ \ x_{2}=\approx-0,001\\\\ pH=-log|H^{+}|=-log0,001=3[/tex]
Answer Link

Otras preguntas

why do the neighbors think that martin cosgrave is “destroying himself “
How was Cuba before the Cuban revolution
name the purpose of the dendrite, cell body and axon
No matter what happens to us, we still have which of the following?
What is equivalent to -1/4y -2 1/4y + 1/2 (4-2y)
What is a circumference of a circle
Jasmine's plane ticket cost $466.88. She has already saved 25% of the cost of the ticket. During the next 2 weeks, she will save 1/2 of the remaining cost of th
Watch this video about how an apple farmer decides the optimal number of apples to pick. At the end of the video, consider whether or not the government should
Solve using the quadratic formula x2 - 6x - 40=0 Question options: x = 10 or x = -4 x = 4 or x = -10 x = -7 or x = 7 x = -4 - √7 or x = -4 + √7
In an experiment to test the impact a sports drink had on the amount of energy, individuals were given either water or a sports drink. They watched a television