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If the hydroxide ion concentration of a solution is 3.26 x 10-6 M, is it an acidic or a basic solution?

User Bumbu
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1 Answer

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29 votes

Answer: It is a basic solution with pH =8.51

Step-by-step explanation:

We were given that hydroxide ion concentration [OH-] as 3.26 x 10-6 M

But We know thar

[OH-] [H+] = 1 × 10^-14

To get the Hydrogen ion [H+] concentration, we have that

[H+] = 1 × 10^-14 M/[OH-]

= 1 × 10^-14 M/3.26 x 10-6 M

= 3.067 x 10^-9 M

But, pH = - log [H+]

Therefore,

pH = - log (3.067 x 10^-9)

pH=8.51

when pH > 7, The solution is basic, therefore a solution with pH =8.51 is basic.

User Callingshotgun
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