The state's landlord-tenant laws protect people living in dwellings owned or leased by others. A person need not be listed on a formal lease to gain protection under these laws, but may gain protection by establishing residence in a place.
The mole is useful in chemistry because it is defined such that the mass of Avogadro's number of particles (atoms or molecules) of a substance (the molar mass) is equal to the sum of the numerical values of the atomic masses of its constituent elements.
By necessity, the mass of 1 m in grams will change accordingly. This is not worrisome, because neither number is crucial to the utility of the mole. The atomic weight plays a dual role in chemistry. It is used to represent the mass of a single atom, molecule, or formula unit of a substance, in which case it has units amu/atom. It is also used to represent the mass of a mole of substance, in which case it has units g/mole.