Question

what is the hydronium ion concentration of solution that has ph of 8.57?

Answer 1

please teach me how to get the answer.

Answer 2

Just use
\[pH=-\log_{10}[H^+]\]

Answer 3

H+ stands for what?

Answer 4

The concentration of hydronium

Answer 5

Are you good at logarithms?

Answer 6

what's that?

Answer 7

the answer is 2.7 x 10*-1 but how can i do it myself?

Answer 8

There's a property
\[\LARGE \log_ab=c \Leftarrow \Rightarrow b=a^c\]
----------------------------------
\[pH=-\log_{10}[H^+] \\ \\ -pH=\log_{10}[H^+]\]
Then use that property,
\[\large [H^+]=10^{-pH}\]

Answer 9

so -log (10-8.57)

Answer 10

No, from here,
\[\large [H^+]=10^{-pH} \\ \\ \large [H^+]=10^{-(8.57)} \\ \\ \large [H^+]=2.69 \times 10^{-9} mol dm^{-3}\]

Answer 11

now i got the answer right, Thank you for helping me :)

Answer 12

yw :)