adamzwangneedshelp adamzwangneedshelp

03-06-2016
Chemistry

contestada

a .35 m solution of weak acid, HX, has a h+ of 4.15×10^-3. what is the value of ka for this acid

Respuesta :

05-06-2016

Ka has the formula:

Ka = [H+] [X-] / [HX]

We have the following given:
[H+] = 4.15x10^-3
[HX] = 0.35

Since the acid dissociates in a ratio of 1 [H+] to 1 X,
[H+] = [X-]

Plugging in the values,
Ka = (4.15x10^-3)(4.15x10-3) / 0.35
Ka = 4.92x10^-5

Answer Link

Otras preguntas

Explain the following lines from the selection. A.Matters of personal interest and friendship are decided by our inclination. We do not consider distance or

How many metres is space from earth

Which is a run-on sentence? A. Her closet is full of clothes, yet she says she has nothing to wear. B. Her book report is due Thursday she hasn't read the bo

Write x^3-x^2-6x in factored form

What's the answer????

What is the answer to this problem What is the equation that represents the data in the table below? X|-2|-1|0|1|2|X Y|6|7|8|9|10|? Remember to include Y= in yo

Why should an auditor make decisions in the public interest rather than in the interest of management or current shareholders??

I need examples of common nouns please

Write a summary of the following passage: Full-time employees earn vacation days at the rate of one day per month, or twelve days per year. Vacation time may b

Simple exocrine glands are found in the ___ glands in dogs. A. Sweat B. Adrenal C. Salivary D. Mammary