Related: Molecular weights of amino acids Weights of atoms and isotopes are from NIST article. Molar mass ( molar weight) is the mass of one mole of a substance and is expressed in g/mol.What is the percent water by weight in this hydrate A 3.564 g of a sample of a hydrated barium chloride salt BaCl2 cdot X H2O is heated to a constant mass of 2.641 g of BaCl2. (1 u is equal to 1/12 the mass of one atom of carbon-12) Cobalt(II) chloride is commonly obtained from chemical suppliers as a hydrate with the formula CoCl2 6H2O. The mass percent of water in a hydrate of FeSO4 is 45.35. Calculate the percent water in cobalt (II) chloride hexahydrate, CoCl2 x 6H2O. Molecular mass ( molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). Calculate the percent water in cobalt (II) chloride hexahydrate, CoCl2 x 6H2O 2. Complete the table below for calculating the molar mass of the ionic compound cobalt(II) chloride Formula Molar mass of ion Number of ions Mass of ion in one mole of cobalt(III) chloride Cation Cos g/mol Anion Molar mass cobalt(III) chloride Submit Answer Retry Entire Group 1 more group attempt remaining Complete the table below for calculating the molar mass of the compound boron tribromide.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) Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg.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. Cobalt(II) chloride appears as a pinkish-purple crystalline solid.Ĭomputing molar mass (molar weight)To calculate molar mass of a chemical compound enter its formula and click 'Compute'.
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