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. Cobaltous chloride, hexahydrate cobalt (2+) chloride hexahydrate, cobalt dichloride CAS No.: Anhydrous ( Hexahydrate) Molecular Weight. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. 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. Here, the compound is given to be cobalt (II) chloride hexahydrate (CoCl.6HO) and its molar mass can be calculated as follows. These relative weights computed from the chemical equation are sometimes called equation weights.Ī common request on this site is to convert grams to moles. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.įormula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. 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. a pollution of 1 gram of benzene in a certain amount of water converts to N A/78.11≈ 7.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. chloride of sodium, so as to deduce from these data the atomic weight of the silver and the molecular weight of the sodic chloride. Using the above calculator you could find that e.g. Or 1 mole of a substance will contain Avogadro's number of that substance. The term " mole" is defined in that one mole of a substance with a molecular (or atomic) mass of one (1), will have a mass of 1 gram. It is defined to be 1/12 of the mass of one atom of carbon-12 and in older works is also abbreviated as "amu".Īlso, important in this field is Avogadro's number (N A) or Avogadro's constant (6.0221 x 10 23). In related terms, another unit of mass often used is Dalton (Da) or unified atomic mass unit (u) when describing atomic masses and molecular masses. Molecular Formula : C14CuH12N2O2 Molecular Weight : 277.464 CAS RN 20 Handbook of Inorganic Compounds. Molecular mass or molar mass are used in stoichiometry calculations in chemistry. cobalt ( II ) phosphate monohydrate Synonyms. This Calculator has been tested on Internet Explorer version 6 only,įirefox might not show all fields correctly. For question or remarks please contact us. !!! Lenntech BV cannot be held responsible for errors in the calculation, formula for Cobalt (II) chloride hexahydrate (CoCl2 6H2O). Make sure you enter the molecule of crystallization at last (e.g. The molar mass of the hydrate is the molar mass of the CoCl 2 plus the mass of water. The calculator handles at most two different bracket levels. ![]() The molecular mass calculator will recognize the entered formula's, which are included in the list of organic compounds. ![]() Or you can choose by one of the next two option-lists, which contains a series of common organic compounds (including their chemical formula) and all the elements. chloride, polystyrene, polyvinyl acetate, polyesters (in particular PET), and. This online calculator you can use for computing the average molecular weight (MW) of molecules by entering the chemical formulas (for example C3H4OH(COOH)3 ). cobalt, these chemicals are present in the fossil fuels and must be removed. Molecular Weight Calculator Molecular Weight Calculator Separation and Concentration Purification Request.Plant Inspection & Process Optimalisation.
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