To find the Kb value of the weak base, we first need to find the pOH of the solution.
pOH = 14 - pH
= 14 - 11.40
= 2.6
Next, we can convert the pOH value to OH- concentration using the formula:
OH- = 10^(-pOH)
= 10^(-2.6)
= 2.51 x 10^(-3) M
Since we know that the concentration of the weak base, BOH, is 0.012 M, we can use the formula for Kb:
Kb = [OH-]^2 / [BOH]
= (2.51 x 10^(-3))^2 / 0.012
= 6.32 x 10^(-7)
Therefore, the Kb value of the base is 6.32 x 10^(-7).
The PH of 0.012M solution of weak base BOH wasdetermined to be 11.40 what is the Kb value of the base?
1 answer
1 answer