How do I calculate this pH?

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How do I calculate this pH?

How do I calculate the pH of HC2H3O2 when all I have is the Ka value of 1.8*10^-5 and the concentration of HC2H3O2 which is 1.0*10^-1.

2007-03-12 13:06:23 · 2 answers · asked by p_rob22 1 in Science & Mathematics ➔ Chemistry

2 answers

the relevant eq is that [H+]=sqrt(KaMa)

Ma is the molarity of acid. once u find [H+], u can find pH.

[H+]=sqrt(1.8E-5)(.1)

[H+]=0.0013M

now pH = - log [H+]

pH = - log 0.0013

type that in to a scientific calculator.

2007-03-12 13:14:37 · answer #1 · answered by Ari 6 · 0⤊ 0⤋

drtgjhb4e56yb246843w583486098374609 4363-46-3-463-4986306--60983=6-=23496=-380606u-324956

2007-03-12 13:13:14 · answer #2 · answered by chachaman 1 · 0⤊ 0⤋