Question

what is stoichiometry used for? a. to determine the atoms in a formula b. to determine the shape of a molecule c. to determine the molar mass of a molecule d. to determine the amount of a substance

Explanation:

Stoichiometry is based on the relationships between reactants and products in chemical reactions, and it is used to calculate the amounts of substances involved in a chemical reaction. It doesn't directly determine atoms in a formula (that's more about chemical formulas themselves), the shape of a molecule (which is related to molecular geometry concepts), or molar mass (though molar - mass values are used in stoichiometric calculations, its main purpose isn't to determine molar mass).

Answer:

D. To determine the amount of a substance