In order to calculate the mass of a product in a chemical reaction from the number of moles of a reactant, which of the following describes all the conversion factors needed?

• A. Molar mass reactant, molar mass product.
• B. Molar mass reactant, mole ratio of product to reactant from the balanced chemical equation, molar mass product.
• C. Molar mass reactant, mole ratio of product to reactant from the balanced chemical equation.
• D. Mole ratio of product to reactant from the balanced chemical equation.

Answer: (D)

Verified step by step guidance

1. Identify the given information: the number of moles of a reactant is provided, and you need to find the mass of a product.
2. Understand the concept of stoichiometry: it involves using the balanced chemical equation to relate the quantities of reactants and products.
3. Determine the mole ratio: from the balanced chemical equation, find the mole ratio of the product to the reactant. This ratio is crucial for converting moles of reactant to moles of product.
4. Use the mole ratio as a conversion factor: multiply the given moles of reactant by the mole ratio to find the moles of product.
5. Convert moles of product to mass: use the molar mass of the product (in grams per mole) to convert the moles of product to mass by multiplying the moles of product by the molar mass.