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.Now we have the equation, Molar Concentration Amount in Moles / Volume of Solution First convert the volume of aqueous NaOH into dm-3 25 cm3 25 / 1000 dm3 25 × 10-3dm3 Therefore, the molar concentration of NaOH 8.75×103 / 25.0×10-3 Molar concentration of NaOH 0. (1 u is equal to 1/12 the mass of one atom of carbon-12) The amount of NaOH present in moles is 8.75 × 10-3mol. Molecular mass ( molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u).Initial Reading (mL), NaOH buret error: Final Reading (mL), NaOH buret Total NaOH volume used in titration (mL) Moles of NaOH used. Assume the density of vinegar is 1.00 g/mL. 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 Transcribed Image Text: Concentration of NaOH (M): Molar mass of acetic acid: (g/mol) Titrate 5.00 mL of vinegar for each trial. 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. NaOH(s) + CO 2(g) = Na 2CO 3(s) + H 2O(l)Ĭomputing molar mass (molar weight)To calculate molar mass of a chemical compound enter its formula and click 'Compute'.
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