The discussion revolves around calculating the average distance between nitrogen molecules at standard temperature and pressure (STP). Participants are exploring the relationship between molecular density and distance in a gaseous context.
The discussion includes attempts to clarify calculations and assumptions regarding density and molecular mass. Some participants are exploring different interpretations of the problem, and there is a recognition of potential confusion regarding the correct density value.
There is a mention of an incorrect density value for lead instead of nitrogen, indicating a possible misunderstanding in the problem setup. Participants are working under the constraints of homework rules, which may limit the depth of their discussions.
Theelectricchild said:I seem to have the same problem. I know that rho lead = 1.25 kg/m^3 at STP, then i divide by 28e-3 kg/mol to get molec/volume. Then i cube root this to get molec/length = 3.5 approximately. Then using the pressure in a gas equation I get l = 4.107e-8m, but i cannot get units to cancel here to get a length. I end up with something like 1.16e-8 meteres distance between the molecules--- not sure if that's right. Thanks for the ehlp.