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miss Akunina [59]
3 years ago
14

how many H+ ions are in a solution with a pH of 2 and how many H+ ions are in a solution with a pH of 6?

Chemistry
1 answer:
LiRa [457]3 years ago
3 0

Answer:

i) pH = 2

pH = -log(H+)

:- (H+) = 10^(-2)

:- (H+) = 0.01 M

ii) pH = 6

pH = -log(H+)

:- (H+) = 10^(-6)

:- (H+) = 0.000001 M

Explanation:

By definition: pH = -log(H+).

Given your pH, solve for the H+ using the the following log rule:

if a = (+/-) log (b) then

b = 10^((+/-) a).

Also remember unit of concentration is molar (M)

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<u>So, the right choice is: </u>

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