Question

acetic acid =4.76, ka=_________M

Answer 1

I'm cluless!

Answer 2

Sorry i have no idea

Answer 3

@ganeshie8 maybe?

Answer 4

I think it is...
pH = 4.760 + log 0.00379/ 0.00621 = 4.55
Not really sure.
It may be wrong though...

Answer 5

@Sepeario

Answer 6

@surjithayer @shrutipande9 @sammixboo @ShadowLegendX @sammie2017 @Donblue22 @Dark_Riddles @rishavraj @anonymous_user @april115 @Awesome781 @Frosty_Flow @tester97 @thadyoung @iambatman @ikram002p @ParthKohli @genny7 @grray7 @ganeshie8 @Haseeb96 @happyyanee2 @hba @Jumperman @lissiewalkin @lilfayfay @Lrki @zubhanwc3 @Cydney_Morgan @bibby @bluebrandon @bestie @nirmalnema @navina @missylulu @Mclovin21 @mony01

Answer 7

*YAWN* Huh? You woke me from my hibernation? Don't you see that I'm a wolf?

Answer 8

Sorry.

Answer 9

Does anyone know how to do this

Answer 10

You just woke up a wolf, man IDEK how to do this, google Helps.

Answer 11

acetic acid pKa=4.76, ka=_________M

Answer 12

Don't ask a wolf! Wolves only know about how to sleep, eat, hunt, howl, and.... other stuff. Not this, it's not important to our way of life.

Answer 13

You know that the pH = 2.88
pH = -log [H+]
using log laws:
[H+] = 10^-pH
[H+] = 10^-2.88
[H+] = 1.318*10^-3

You know that :
For acetic acid use HAc
Ka = [H+] *[Ac]/ [HAc]

you know [H+] = [Ac-] = 1.318*10^-3 . So [H+] * [Ac-] = [H+]² and [HAc] = 0.1
Substitute:
Ka = (1.318*10^-3)²/0.1
Ka = 1.74*10^-6 / 0.1
Ka = 1.74*10^-5

pKa = -log Ka
pKa = -log ( 1.74*10^-5)
pKa = 4.76

Answer 14

@toxicsugar22 do u get that ??