Question

Which solution listed below has the highest pH?[H3O+] = 0.050 M[H3O+] = 0.025 M[H3O+] = 1.50 M[H3O+] = 1.25 M[H3O+] = 0.750 M

Answer 1

Answer:

$\mleft[H_3O^+\mright]=0.025M$

Explanation:

Here, we want to get the solution with the highest pH

What is pH?

pH is the negative logarithm to base 10 of the concentration of the oxonum ion

Mathematically, we have this as:

$pH=-log\lbrack H_3O^+\rbrack$

By this, we can get the pH value

We have different oxonium ion concentrations

What we have to do here is to find the relationship between pH and the concentration of the oxonium ions

It is known that, the lower the pH value, the greater the oxonium ion value

So, there is an inverse relationship between pH values and the concentration of the oxonium ion

Thus, the solution with the highest pH value will be the solution with the lowest concentration of oxonium ion

The correct answer here is 0.025 M