The ph of a solution is 9.55 at 25degree celcius. What is the hydroxide-ion in the solution?
To determine the hydroxide-ion (OH-) concentration in a solution based on its pH, you can use the formula:
pOH = 14 - pH
Since pH is given as 9.55, you can find pOH as:
pOH = 14 - 9.55
pOH = 4.45
To convert the pOH value to hydroxide-ion concentration ([OH-]), you can use the formula:
[OH-] = 10^(-pOH)
Substituting the value of pOH:
[OH-] = 10^(-4.45)
Now, let's calculate the value using a calculator:
[OH-] ≈ 3.16 x 10^(-5) mol/L
Therefore, the hydroxide-ion concentration in the solution is approximately 3.16 x 10^(-5) mol/L.
Note the correct spelling of celsius.
pH + pOH = pKw = 14
Solve for pOH.
Then pOH = -log(OH^-)