![]() ![]() embedded in the cross-sector calculation tools listed in this section. Please let us know how we can improve this web app. Each tool reflects best-practice methods that have been extensively tested by. Related: Molecular weights of amino acids Weights of atoms and isotopes are from NIST article. Ionic Formula Calculator gives the formula of an ionic compound and net ionic charge details quickly. Molar mass ( molar weight) is the mass of one mole of a substance and is expressed in g/mol.(1 u is equal to 1/12 the mass of one atom of carbon-12) Molecular mass ( molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u).To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.Įxamples of molecular weight computations:ĭefinitions of molecular mass, molecular weight, molar mass and molar weight ![]() Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.Ĭomputing molecular weight (molecular mass) Completion of this step results in a base formula of Li2SO41. Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg The 'Criss-Cross' Method In this system, the superscript on the first symbol becomes the subscript on the second symbol, and the superscript on the second symbol is repositioned as the subscript on the first symbol, as shown below.Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al. Computing molar mass (molar weight)To calculate molar mass of a chemical compound enter its formula and click 'Compute'.
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