Chem question about concentration

A technician compares two solutions, one with a pH of 2.65 and another with a pH of 4.65.
Which would have a higher concentration of hydronium ion? and Why?

Thanks :)

The pH scale ranges from 0 to 14, with values below 7 representing acidic pH, values above 7 representing basic pH, and a value of 7 representing neutral pH, which is the pH of pure water.

If a solution is more acidic than another, it contains a higher concentration of hydronium ions. pH itself is a measure of hydronium ion concentration. pH = the negative logarithm of hydronium ion concentration.

So, in your case, the first solution has a higher hydronium ion concentration.

The more hydronium (H3O+), the more acidic. So the answer is the 2.65.

4.65