Question

What is the relationship between the concentration of the hydronium and hydroxide ion and pH in any water solution?

Answer 1

Answer:

The concentration of hydronium ions and the pH value is related by the equation: pH=-Log[H+]

Explanation:

We have two different concepts pH and concentration of hydronium ions. Lets start with the hydronium ion.

An hydronium ion is a species that is produced by an acid:

$HA~->~H^+~+~A^-$

Aditionally, we can have the production of hydroxide ions. The subtances that have the capacity to produce this ions are called "bases":

$BOH~->~B^+~+~OH^-$

Now we can continue "pH"

The pH is a scale that indicates if the substance is and acid (higher concentration of $H^+$), neutral (equal amounts of $H+$ and $OH^-$) or basic (higher amount of $OH^-$).

Finally, the "pH" is calculated with the concentration of the hydronium ions (

$H^+$), the letter "p" is "-Log", therefore:

$pH=-Log[H^+]$

I hope it helps!