Strong vs Weak Acids

[haleyervin7]

Why do solutions of weak acids have higher pH values than solutions of strong acids at the
same concentration?

[Anusha 1H]

The pH value is based on the amount of hydronium ions in the solution.
Because we assume that strong acids are fully deprotonated in solution, this means that there is a much higher concentration of H+ ions in the solution than in weak acids, which leads to a lower pH value.

Basically, the higher the H+ concentration, the lower the pH

[Chloe Thorpe 1J]

Like the other answer said, stronger acids have higher concentrations of H+, which leads to a lower pH (more acidic). A weak acid will not fully ionize, so there will be less H+ atoms in solution (lower [H+] = higher pH = less acidic).