a pollution of 1 gram of benzene in a certain amount of water converts to N A/78.11≈ 7. 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). Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element in Pb (No3)2: Molar Mass (g/mol) Pb (Lead) 1 × 207.2 207.2. 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 mass or molar mass are used in stoichiometry calculations in chemistry. 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, Make sure you enter the molecule of crystallization at last (e.g. Find the molar mass of any element in the periodic table by selecting it from the list of 118 elements. 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. Use uppercase for the first character in the element and lowercase for the second character. It will calculate the total mass along with the elemental composition and mass of each element in the compound. Enter the molecular formula of the substance. Using the periodic table to find the mass for each mole of our elements we have: 1moleC 1 moleC ×(12.011gC 1 moleC) 12.011gC (8.3.8) (8.3.8) 1 m o l e C 1 m o l e C × ( 12.011 g C 1 m o l e C) 12.011 g C. This program determines the molecular mass of a substance. 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. First we need to determine the mass of one mole of methane (CH 3 OH). 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 ). The calculator utilizes the periodic table of elements to determine the atomic weights of the elements present in the formula. Molecular Weight Calculator Molecular Weight Calculator Separation and Concentration Purification Request.Plant Inspection & Process Optimalisation.
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