## NaCl Density in lbm/ft3

Calculate the density of NaCl at 20C in lbm/ft3 ?

since no volume was given i was wondering if this can be done this way
by using the Specific gravity which around 2.1x the referance density of solids/liquids which is 62 lbm/ft3 SG=p x pref

or can this be done using the PV=nRT, i assume at 1 mole so V=RT since D=m/v
D=m/(RT)
D=58(g/mol)/(8.3x293K)=0.024

i was also thinking of calculating the density using the FCC cube and go from there, I just think i' am making this problem seem harder than it is

Any feed back is appreciated

thx
 PhysOrg.com engineering news on PhysOrg.com >> Army ground combat systems adopts tool for choosing future warfighting vehicles>> Company pioneering new types of material for 3-D printer 'ink'>> Student-built innovations to help improve and save lives
 Admin PV=NRT is for ideal gases, not for soilds. If you are given specific gravity all you have to do is to convert from one units to another.

Blog Entries: 5
Recognitions:
Homework Help