Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

The pH scale is used to determine the acidity or basicity (alkalinity) of a substance. Acidic substances have pH values below 7, while basic substances have pH values above 7; neutral substances have a …

Chemistry of buffers and buffers in our blood Ka and acid strength Autoionization of water Definition of pH Strong acid solutions Strong base solutions Weak acid equilibrium

If you think back to the pH scale, you'll remember that it goes from zero to 14, acidic to basic, and that seven, right in the middle, is neutral. Normal rain is around 5 or 5 1/2, so it's slightly acidic, but acid …

The pH scale is used to determine the acidity or basicity (alkalinity) of a substance. Acidic substances have pH values below 7, while basic substances have pH values above 7; neutral substances have a …

The pH is equal to the negative log of the concentration of our hydronium ion, which is 1.5 times 10 to the negative four. Let's get out the calculator and let's do this calculation here.

The concentration of H₃O⁺ in a strong acid solution is therefore equal to the initial concentration of the acid. For example, a solution of 0.1 M HNO₃ contains 0.1 M H₃O⁺ and has a pH of 1.0.

We can determine whether a salt solution will be acidic, basic, or neutral by considering the reactivity of both the cation and the anion with water. If neither species reacts with water, the solution will be neutral.

Acids, bases, and pH Learn Arrhenius acids and bases Brønsted–Lowry acids and bases

Practice Strength of acid and base Learn Introduction to pH Strong and weak acids/bases