Question

Mass of 4 gram atoms of chlorine is ______.

Options

• 35.5 gram

• 142 g

• 150 g

• None of the these

Answer 1

Mass of 4 gram atoms of chlorine is 142 g.

Explanation:

The term gram-atom is an older chemical expression that simply refers to one mole of atoms. Since the atomic mass of chlorine is 35.5 g, one gram-atom of chlorine has a mass of 35.5 grams. Therefore, the total mass of 4 gram-atoms of chlorine is calculated by multiplying 4 by 35.5, which equals 142 grams.