It is the weighted average of the individual molecular weights of the components oxygen and nitrogen. Generally speaking, air is composed of 21% oxygen and 79% nitrogen. Thus the average molecular weight of air is calculated as follows:
MW air = (.21)*(MW O2) + (.79)*(MW N2)
Oxygen o2 only is slighty heavyer than air. o3(ozone) is around the same weight as o2 ,but the ozone layer is at a hiegher altitude because it is created when o2 come in contact with high amounts of UV rays.
Radon is actually heavier than air. It is a noble gas with a molecular weight of about 222 g/mol, while the average molecular weight of air is approximately 29 g/mol. Due to its higher density, radon tends to accumulate in low-lying areas and can pose health risks when trapped indoors.
The molecular weight of malondialdehyde (C3H4O2) is 72.06 g/mol.
The molecular weight of serotonin is approximately 176.203 g/mol.
MgCO3 has a molar mass (molecular weight) of 84.3139 g/mol.
The average molecular weight of dry air is 28.96 g/gmol.
The molecular weight of air is approximately 28.97 lb/lbmol.
The molecular weight of air is approximately 28.97 lb/lbmol.
The molecular weight of air is approximately 28.97 pounds per pound-mole.
First, molecular weight is a direct function of the level of dissociation and hence an indirect function of temperature. Dissociated Air has a significantly (about an order or magnitude) lower molecular weight as associated air (e.g. air at room temperature). Dissociation for air starts somewhere around 2000 Celsius (that's where O2 goes into O+O) and hence, the molecular weight of air up to 2000 Celsius is constant. This also affects the "specific gas constant" which drastically decreases in temperature regimes where dissociation occurs.With that said, the molecular weight of DRY air (no water vapor) is 28.97. Engineering Toolbox does a good job of breaking down the composition of associated air, see the URL below:http://www.engineeringtoolbox.com/molecular-mass-air-d_679.html
Water evaporated at atmospheric pressure is 1601 times less dense than liquid water. Air is 1225 times less dense than liquid water.Nitrogen gas the primary component of air has a molecular weight of 28.014.Oxygen the secondary component of air has a molecular weight of 31.998.Water has a molecular weight of 18.015. Water is lighter in the gaseous state.
The diffusion rate of gas in air depends on factors like temperature, pressure, and molecular weight of the gas. Gases with lower molecular weight tend to diffuse faster than those with higher molecular weight. In general, gas molecules will spread throughout the air relatively quickly due to their high mobility and ability to mix freely.
The density of a gas is propotional to its molecular weight. Air is composed of primarily of nitrogen and oxygen, which have molecular weights of about 28 g/mol and 32 g/mol respectively. Sulfur hexafluoride has a molecular weight of about 146 g/mol, which would make it roughly 5 times denser than air.
It has a molecular weight of 21,600 Daltons
molecular structur C9H8K2O4molecular weight: 258.35
To determine the equivalent weight from the molecular weight, you need to divide the molecular weight by the valence (or charge) of the compound. For example, for a compound with a molecular weight of 100 g/mol and a valence of 2, the equivalent weight would be 50 g/equiv.
The molecular weight of vanillideneacetone is 192.214g/mol.