Avogadro�s hypothesis states that equal volumes of different gases at the same temperature and pressure contain the same number of molecules
Avogadro�s number is the number of atoms or molecules, 6.023 x 1023, that is in one mole
Law is what something or someone can not disobey.
Mass is the wait of the amount of madder in someone or something also a body of matter that forms a whole but has no definable shape.
Molar mass is the mass of a mole
Molar volume is the volume occupied by one mole at stp
Molecular weight is the sum of the atomic weights of all the atoms in a molecule.
Molecule is the smallest unit of a substance that shows all the chemical properties of that substance.
Qualitative is used to describe qualities as opposed to quantities
Quantitave is used to describe quantities that can be measured and expressed in numerical terms.
STP is the standard temperature and pressure that a substance is kept at witch is 0 degrees C and kept at 1 atmosphere pressure.
Theory is what someone thinks will happen if they do something.
Dimensional analysis is used for changing the type of measure meant of a substance.
Weight is the force with which a material object is attracted to the earth or any other field of gravity.