The SI unit representing the number of particles in a measured amount of substance is the . Molecular mass is the total of the masses of all atoms in one molecule
of a compound and is measured in . Molar mass for the same compound is the
same number, measured in grams per mole, and represents the mass of substance containing
one . One mole of a substance has atoms or
molecules. This number is known as number. To determine the
number of moles in a sample of an element, compound, or molecule, the mass of the
substance measured in is divided by the molar mass of the substance.
How many moles are contained in 24 grams of carbon? To determine the number of moles, first
find the molar mass of carbon. The molar mass is g/mol. Divide
grams by the molar mass. There are moles of
carbon in the sample.