I think you must be in my Chem class, because I am searching for the same answer right now.
if you are using chemistry the central science 11e, its on page 93
The molar mass of an element indicates how much mass is in one mole of the element. From that we can make a ratio to convert moles of a substance to mass in grams. For example: How many grams are in...
the mole is Avogadro's number (N = 6.022 x 1023 ) of particles of whatever substance you are measuring. If exactly one mole of the substance is weighed the mass would be the atomic number in grams....