Unit 6: Acids and Bases

Front

What is the pH of a neutral solution at 25°C?

Back

7

Front

What is the formula to calculate the concentration of hydroxide ions [OH^-] from pH?

Back

[OH^-] = 10^(-14) / [H⁺]

Front

What is the relationship between pH and [H⁺] concentration?

Back

pH = -log[H⁺]

Front

What is the pH of a solution with [H⁺] = 1.0 x 10^-4 M?

Back

4.0

Front

If a solution has a pH of 10, what is the [H⁺] concentration?

Back

1.0 x 10^-10 M

Front

What is KOH classified as?

Back

A base

Front

What is the pH of a solution with [OH^-] = 1.0 x 10^-12 M?

Back

2.0

Front

What is the formula to calculate pH from [OH^-] concentration?

Back

pH = 14 - pOH, where pOH = -log[OH^-]

Front

What is the pH of a solution with [H⁺] = 9.3 x 10^-11 M?

Back

10.0

Front

What is the significance of a pH less than 7?

Back

It indicates an acidic solution.