(d) What is the molar mass of cholesterol if 0.00105 mol has a mass of 0.406 g?

Key Concepts

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all the atoms in a molecule. For example, the molar mass of cholesterol can be determined by dividing the mass of the sample by the number of moles present.

Calculating Moles

Moles are a unit of measurement in chemistry that quantify the amount of substance. The number of moles can be calculated using the formula: moles = mass (g) / molar mass (g/mol). Understanding how to manipulate this equation is essential for determining the molar mass when given mass and moles.

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one set of units to another. In chemistry, it is often necessary to convert between grams, moles, and molar mass. Mastery of unit conversion is crucial for accurately solving problems involving quantities of substances.