pH Scale, Acids, and Bases

Front

What is the pH scale used for?

Back

The pH scale is 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 pH value indicates an acid?

Back

A substance with a pH value less than 7 is considered an acid.

Front

What pH value indicates a base?

Back

A substance with a pH value greater than 7 is considered a base.

Front

What is the pH range of human blood?

Back

The pH of human blood typically falls between 7.35 and 7.45, making it slightly basic.

Front

What ions do bases produce in solution?

Back

Bases produce hydroxide ions (OH-) in solution.

Front

What are some common characteristics of acids?

Back

Acids typically have a sour taste, can conduct electricity, and turn blue litmus paper red.

Front

What are some common characteristics of bases?

Back

Bases typically have a bitter taste, feel slippery, and turn red litmus paper blue.

Front

What does the term 'pH' stand for?

Back

pH stands for 'potential of hydrogen'.

Front

What is a neutral substance on the pH scale?

Back

A neutral substance has a pH of 7.

Front

How can you identify an acid using litmus paper?

Back

An acid will turn blue litmus paper red.