Question

Calculate the pH of 6.8 × 10-8 M HCl. Report your answer to the hundredths place.

Answer 1

ph = -log[H+]
hint [H+] can be found out from the concentration of HCl

Answer 2

@Kryten

Answer 3

yes?

Answer 4

Hcl -----> H^+ + Cl^-

Answer 5

So H+ = 6.8 × 10-8

Answer 6

Am i correct ?

Answer 7

yup and from there you see that
n(HCl) = n(H+) so [H+] = [HCl]

Answer 8

Nw PH = -log (6.8 × 10-8)

pH = 8 - log6.8 correct??

Answer 9

nope pH = - log (6,8*10^-8)
or if you want
pH = - log 0,000000068
;)

Answer 10

ok.....thxxx....) Sir..)

Answer 11

not a problem ;)