What is the conversion factor used when converting mass to moles?

A substances molar mass is calculated by multiplying its relative atomic mass by th molar mass constanttt (1 g/mol). So the molar mass constant can be used to convert mass to moles. So by multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.