When molecular mass of an atom is expressed in grams it is called one mole. According to the Avogadros number one mole of a substance contain 6.022x 1023 molecules.
One mole of glucose= 6.022x 1023 molecules
three moles of glucose= 3*6.022x 1023 molecules
In a molecule of glucose there are 24 atoms. So atoms in one mole of glucose is;
One mole of glucose= 24*6.022x 1023 atoms
three moles of glucose= 3*24*6.022x 1023 atoms
Carbon atoms in three moles of glucose= 6*3* 6.022x 1023 atoms
moles of carbon atoms in three moles of glucose= 6*3* 1 mole
moles of carbon atoms in three moles of glucose= 18 moles
One mole of glucose= 6.022x 1023 molecules
three moles of glucose= 3*6.022x 1023 molecules
In a molecule of glucose there are 24 atoms. So atoms in one mole of glucose is;
One mole of glucose= 24*6.022x 1023 atoms
three moles of glucose= 3*24*6.022x 1023 atoms
Carbon atoms in three moles of glucose= 6*3* 6.022x 1023 atoms
moles of carbon atoms in three moles of glucose= 6*3* 1 mole
moles of carbon atoms in three moles of glucose= 18 moles