What is the formula for converting moles to mass in chemistry?

The appropriate formula for converting moles to mass in chemistry is given by multiplying the number of moles by the molar mass (where the molar mass refers to the weight of the element or compound in grams per mole). Thus, the correct relationship involves taking the weight of the element, denoted by its molar mass, and multiplying it by the number of moles to obtain the mass in grams.

For clarity, when dealing with moles, you start with the quantity in moles and use the molar mass (the weight of one mole of that substance) to find the mass. This is critical for performing calculations in stoichiometry and understanding the relationships between reactants and products in chemical reactions.

Other choices do not accurately represent the correct calculation for converting moles to mass. The first choice incorrectly suggests using "weight of moles," which is not a defined quantity in chemistry. The third option divides number of moles by the weight of the element, which misrepresents the relationship entirely. Lastly, the fourth option relates to finding the number of particles rather than mass, as Avogadro's number gives the number of entities (atoms, molecules, etc.) in one mole, not the mass converted from moles.