One of the major applications of the mole-mass conversion is calculating the product amounts from a balanced chemical equation. A balanced equation provides only the number of moles of reactants and the number of moles of products. The ratio between the number of moles of any two substances in a chemical reaction is called the mole ratio. In a laboratory, the mass of a substance is measured, not the number of moles, so converting from moles to mass is of great importance.
Consider the calculation of the amount of product from a reaction for which the masses are given. There are four steps to follow.
1. Write the balanced chemical equation for the reaction.
2. Find the number of moles of the reactants.
3. Calculate the number of moles of the products using the mole ratio from the balanced chemical equation.
4. Convert the number of moles of the products into mass.
Convert the given mass to moles.First, determine the molar mass of NaOH using the atomic mass of each element from the periodic table.