pH Flashcard

Front

What is pH?

Back

pH is a measure of the acidity or basicity of a solution, defined as the negative logarithm of the hydrogen ion concentration [H+].

Front

What does a pH of 7 indicate?

Back

A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic.

Front

What is the relationship between pH and pOH?

Back

pH + pOH = 14. This equation shows the relationship between the acidity and basicity of a solution.

Front

What does the 'H' in pH stand for?

Back

The 'H' in pH stands for Hydrogen.

Front

What is the pH range for acids?

Back

The pH range for acids is from 0 to 7.

Front

What is the pH range for bases?

Back

The pH range for bases is from 7 to 14.

Front

How do you calculate pH from [H+] concentration?

Back

pH = -log[H+].

Front

How do you calculate [H+] from pH?

Back

[H+] = 10^(-pH).

Front

What is the pOH of a solution with a pH of 3?

Back

pOH = 14 - pH = 14 - 3 = 11.

Front

What is the [OH-] concentration in a solution with a pH of 10?

Back

[OH-] = 10^(-pOH) = 10^(-4) = 0.0001 M.