Answer:
[H+] is 3.31 × 10^-11 M
Solution: Basic
Explanation:
In the question we are given;
Concentration of Hydroxide ion [OH-] as 3.0 × 10^-4 M
We are required to determine the [H+] and whether the solution is acidic, basic or neutral.
We know that;
pOH + pH = 14
and that;
pOH = - log [OH-]
Therefore;
pOH = - log ( 3.0 × 10^-4)
= 3.52
But;
pH = 14 - pOH
Thus;
pH = 14 - 3.52
= 10.48
But, we know that;
pH = - log[H+]
Therefore;
H+ = Antilog -pH
= Antilog -10.48
= 3.31 × 10^-11
Thus, the concentration of H+ ions [H+] is 3.31 × 10^-11 M
Also since the pH is 10.48, then the solution is basic
