Calorimeter explore

The difference between an acid and a base in the terms of pH is that acids have more hydrogen ions and bases have more hydroxide ions. The link between pH and pOH is the sum of both equal 14. pH is related to H+ ions because it measures the concentration of H+ ions with 1 being the most acidic to 14 being the most basic. pOH is the measure of the concentration of OH- ions. The universal indicator reacted with every buffer, unlike the other indicators that had limited range of reactions. For a neutralization of 5 or 9, I would choose different indicators considering they are on opposite sides of the spectrum. Indicators are substances that react with either the H+ or OH- ions in another substance, showing a change in color when they react and giving evidence of neutralization. The universal indicator can react with almost any substance, the other indicators have a smaller range of reactivity.