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

Who do you like more, Huck Finn or Tom Sawyer. Write 50 word why. *

Which of the following terms correctly describe the object below? Check all that apply. A. Polygon B. Pyramid C. Triangle D. Prism E. Polyhedron F. Square

Write a journal entry as if you are an intern in the White house during the Nixon administration. Describe the events that are happening around you. Which event

High point question. SAT prep

A 1220-w hair dryer is used by several members of the family for a total of 30 min per day during a 30 day month. How much elecrical energy is consumed by the h

y’all someone help me with 7-11

GIVING BRAINIEST!!!!!!!!!!!!! B

Which sentence from Henry's informal essay states the opinion he goes on to further support and explain? Many people are forced to leave their homes because of

Your Competitive Intelligence team reports that a wave of product liability lawsuits is likely to cause Digby to pull the product Daze entirely off the market t

Your friend thinks that the regular pentagon in the diagram has 10 lines of symmetry. Explain and correct your friend's error.