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

Pls help me do this :) urgent message!

Why did America not let Jewish refugees into the United States during the 1930s

CAN SOMEONE PLEASE HELP

Nasrin invested $6000 in a bond at a yearly rate of 3%. She earned $450 in interest. How long was the money invested?

six hundred kilograms of tea were packed in 500 g packets. how many packets of tea were there?

examine figure 1 below. For each numbered location, identify which part of photosynthesis it represents, then discribe how each part enters or exits the plant

find the percentage profit in each case cost price 500 selling price 550

what part of speech is late?

Answer the following questions. a. How old is the rickshaw puller? 5. What does 'he is made of leather' mean? What attracts the attention of the rider? Why does

the length of a rectagle is 5 in longer than its width. if the perimeter of the rectangle is 58 in, find its length and width