Determine the molar volume of n-butane at 510 k and 25 bar based on each of the following: a) the ideal-gas state b) the generalized compressibility-factor correlation c) pitzer correlations for the second virial coefficient d) pitzer correlations for the third virial coefficient

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

answerspecific gravity;