Two gas cylinders have identical volumes and contain gases at identical temperatures and pressures. Cylinder A contains hydrogen and cylinder B contains carbon dioxide. Assuming ideal-gas behavior, which of the following variables differ for the two gases:
(a) number of gram-moles,
(b) number of molecules,
(c) masses,
(d) specific molar volumes (L/mol),
(e) mass densities (g/L)?
For each of the quantities that differ, which one is bigger and by how much? (Assume ideal-gas behavior.)