Answer:
The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.
The density of an object or quantity of matter is its mass divided by its volume.
Answer:
It corresponds to Charles' Law
Explanation:
Charles's Law corresponds to one of the gas laws, where temperature and volume are related, to constant pressure. That is, according to said equation, the volume of a gas varies directly with the temperature, under conditions of constant pressure.