Question

Choose the correct definition of a mole.

• A. the same number of particles in exactly 1 grams of hydrogen molecules
• B. the same number of particles in exactly 14 grams of carbon-14
• C. the same number of particles in exactly 12 grams of carbon-12
• D. the same number of particles as in exactly 1 gram of hydrogen atoms

Answer 1

The correct option is C

the same number of particles in exactly 12 grams of carbon-12

A mole is defined as the same number of particles in exactly 12 grams of carbon-12.