4
QuizMultiple Choice

Molar Masses — Quiz

Question 4 • Chemistry

In a classroom, which comparison would a teacher most likely use for describing a mole?

Answer
A
20 marbles in a bag and 10 large ice cubes
B
a jar of jellybeans and a gram of salt crystals
C
a cup of water and a liter of oil
D
a dozen eggs and a dozen jellybeans

Explanation

A mole is a counting unit, just as a dozen is a counting unit. One dozen eggs and one dozen jellybeans contain the same number of items, even though the items are different; similarly, one mole of any substance contains about 6.02 × 10²³ particles. The comparison is “a dozen eggs and a dozen jellybeans.”

AI-written and checked against the verified answer.

Previous
Next