Chapter 10, Problem 4STP

Interpretation Introduction

Interpretation: To determine the number of hydrogen atoms in six molecules of ethylene glycol.

Concept Introduction: A molecule can be defined as a particle that is attached to a different kind of particle through chemical bonds.

Answer to Problem 4STP

The number of hydrogen molecules in six molecules of ethylene glycol will be $\text{36}$ .

Explanation of Solution

The molecular formula of ethylene glycol is a ${\text{C}}_{\text{2}}{\text{H}}_{\text{6}}{\text{O}}_{\text{2}}$ .

According to the question, there are six molecules of ethylene glycol ( ${\text{C}}_{\text{2}}{\text{H}}_{\text{6}}{\text{O}}_{\text{2}}$ ). Hence, there will be $\text{6}\text{×}\text{}\text{6 = 36 hydrogen}$ .

Therefore, there are 36 hydrogens in the ethylene glycol molecule.