Understanding pH Scale and Its Implications

These flashcards help in understanding the pH scale, its implications on acidity and basicity, and the function of pH indicators.

What does the pH scale measure?

The concentration of hydrogen ions (H+) in a solution.

If a solution has more H+ ions, how does it affect its acidity?

It becomes more acidic.

What is the pH range for acidic solutions?

pH less than 7.

What is the pH range for basic solutions?

pH greater than 7.

What is the pH level of a neutral solution?

pH equal to 7.

How does the pH scale relate to hydrogen ion concentration?

A change of one pH unit changes the concentration of H+ ions by a factor of 10.

How many times more acidic is a solution with pH 2 compared to pH 4?

100 times more acidic.

What happens to the H+ ion concentration when the pH increases?

The concentration of H+ ions decreases, making it more basic.

What role do pH indicators play?

They show color changes at specific pH levels, indicating acidity or basicity.

What color representation can be expected if the pH is between two listed values on an indicator?

The color will be a blend of the two corresponding indicators.