For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Temperature and Pressure - Online calculator, figures and tables showing density and specific weight of nitrogen, N 2, at temperatures ranging from -175 to 1325 ☌ (-280 to 2400 ☏) at atmospheric and higher pressure - Imperial and SI Units. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Nitrogen - Density and Specific Weight vs.
This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. The value will be converted to all other units of the actual measure. Simply select the input unit, enter the value and click 'Convert' button. This is simple to use online converter of weights and measures. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. The weight value 0.03 g (gram) in words is 'zero point zero three g (gram)'. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. These relative weights computed from the chemical equation are sometimes called equation weights. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.įormula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction.
When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. This site explains how to find molar mass.įinding molar mass starts with units of grams per mole (g/mol).
The reason is that the molar mass of the substance affects the conversion. To complete this calculation, you have to know what substance you are trying to convert. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.Ī common request on this site is to convert grams to moles. If you could hop a shuttle to the Moon, Venus or Mars, Jupiter or beyond, would you weigh more or less than your Earth weight Would your clothes fit And, would your periods be the same in outer space Member Check out your Moon Cycle Period Chart and see how often and when your periods align with the lunar.