BIO - Intro to pH

Front

What is pH?

Back

pH is a scale used to measure the acidity or basicity of a substance, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What does a higher pH indicate?

Back

A higher pH indicates that a substance is more basic.

Front

What does a lower pH indicate?

Back

A lower pH indicates that a substance is more acidic.

Front

What is the pH of a neutral substance?

Back

The pH of a neutral substance is 7.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH range for acids?

Back

The pH range for acids is from 0 to less than 7.

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What is the pH range for bases?

Back

The pH range for bases is from greater than 7 to 14.

Front

What is a pH indicator?

Back

A pH indicator is a substance that changes color in response to the acidity or basicity of a solution.

Front

What is Red Cabbage Juice Indicator?

Back

Red Cabbage Juice Indicator is a natural pH indicator made from red cabbage that changes color based on the pH of a solution.