What is the hydroxide ion concentration of a solution with a ph of 8. 25?
1 answer:
The concentration of hydroxide ion of a solution with a pH of 8. 25 is 1.77× M
Calculation,
The pH of a solution tells us about concentration of the ion ( proton ) in solution. However, if we know the value of pH , we can calculate pOH with the help of pH and from pOH we can find concentration of hydroxide ions in the solution.
pH + pOH = 14
8. 25 + pOH = 14
pOH = 14 - 8. 25 = 5.75
Since, pH = -㏒[ ]
Similarly, pOH = -㏒[ ]
If pOH = 5.75 , that means that -㏒[ ] = 5.75 ,which means that,
[ ] =
= 1.77×
.
So, we know that the concentration of the ions in the solution with pH of 8.25 is 1.77×
Molar
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