The final step involves recognizing the stoichiometry of the compound. Each molecule of N2O4 contains two nitrogen atoms.

work out how many atoms of each element are in the chemical formula add together the A r values for all the atoms of each element ...

The chemical formula of glucose (C6H12O6) tells us that there are 12 hydrogen atoms in each molecule of glucose. Therefore, there are 12 moles of hydrogen atoms per mole of glucose. This is a crucial ...