pH of combined chemicals

[Jricer3]

I’m struggling figuring out how the water in this affects the pH levels. Can someone please explain the effects. Also what would be the expected total pH?

KMnO₄ 114 grams +
NaOH 360 grams +
H₂O 1 gallon
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[ChenBeier]

1 gal = 3,78 l
360 g NaOH/3.78 l = 95,23 g/ l = 2,3 mol/l
pH = 14,36 what means high alcaline solution.
Permanganate has no influence.

[Jricer3]

I thought pH of sodium hydroxide was 14 at most. How does it go up in 1 gallon of water? And potassium perm at a pH of 7 does effect the solution?

[ChenBeier]

pH is defind as negative logarithm of activity of hydrogen ions.
The pOH is the same of hydroxide ions.

pH of NaOH is 14 if the Concentration is 1 mol/l

You have 2,3 mol/ l so it's higher,

As I wrote Permanganate has no influence of pH.

[tranquilpoof]

Actually the reaction of the equation is quite difficult. Thank you for sharing the recipe. Easy to find out accurate results

[ChenBeier]

There is nothing difficult. Its only a dissolving of NaOH and KMnO₄ in water. The rest is already said.

[tommchris]

Depending on the chemicals involved, their effects on pH may be additive or not. For example, if you mix a strong acid with a strong base, the resulting pH will be determined by the excess of either the acid or the base.

[ChenBeier]

But this not a case here. Don't fill the server with rubbish.