EXPLORE & EXPERIMENT
What does a change in pH really mean?
Move the pH slider. The graph shows how many times more H⁺ each solution contains than your reference.
log₁₀([H⁺] / reference [H⁺])
Model & assumptions
pH = −log₁₀[H⁺]; concentration ratio = 10^(reference pH − solution pH)
The vertical axis is logarithmic: +2 means 100× the reference H⁺ concentration; −2 means 0.01×. This model does not simulate buffering.