Why is molar mass important in stoichiometry?

Molar mass is crucial in stoichiometry because it provides a link between the mass of substances involved in a chemical reaction and the number of moles of those substances. In stoichiometry, which involves the quantitative relationships between reactants and products in a chemical reaction, understanding molar mass allows chemists to convert between grams and moles.

For instance, when a chemical reaction is analyzed, the molar masses of the reactants and products are used to determine how much of each substance is needed or produced. By knowing the molar mass, one can easily calculate how many moles of a reactant are required to produce a certain amount of product, or how much product will be generated from a specified quantity of reactant.

Thus, the importance of molar mass in stoichiometric calculations cannot be overstated, as it enables accurate predictions of the outcomes of chemical reactions and aids in the efficient planning of experiments.