The density of a gas at Standard Temperature and Pressure (STP) can be used to determine its molar mass. The density of a gas at STP is equal to its molar mass divided by the molar volume, which is 24.45 L/mol for a gas at STP.
So, given the density of the gas as 0.0892 g/L at STP, the molar mass can be calculated as:
molar mass = density * molar volume
= 0.0892 g/L * 24.45 L/mol
= 2.16 g/mol
Unfortunately, this information is not enough to determine the identity of the gas with certainty. The molar mass and density of a gas at STP can be used to identify the gas if it is one of the known gases, such as oxygen, nitrogen, or carbon dioxide, but it is not possible to determine the identity of an unknown gas based solely on its molar mass and density