Lewis Dot Structure Calculator Online



Get the free 'Lewis Structure Finder' widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Chemistry widgets in Wolfram Alpha. The dot diagram shows four lone pairs (4×2 = 8 electrons) plus two double bonds (2×4 = 8 electrons) for a total of 16. It also passes the test! Now that you can draw basic Lewis Dot Diagrams and know where all the bonds go, you can do things like figure out the shapes of molecules and label resonance structures. The ChemDoodle Web Components library is a pure JavaScript chemical graphics and cheminformatics library derived from the ChemDoodle application and produced by iChemLabs. ChemDoodle Web Components allow the wielder to present publication quality 2D and 3D graphics and animations for chemical structures, reactions and spectra.

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Molar Mass, Molecular Weight and Elemental Composition Calculator

Lewis dot diagram calc

Molar mass of CH2ClCOO{-} lewis dot is 93.4896 g/mol
Convert between CH2ClCOO{-}lewisdot weight and moles
CompoundMolesWeight, g
CH2ClCOO{-}lewisdot

Elemental composition of CH2ClCOO{-}lewisdot
ElementSymbolAtomic weightAtomsMass percent
CarbonC12.0107225.6942
HydrogenH1.0079422.1563
ChlorineCl35.453137.9219
OxygenO15.9994234.2271

Mass percent compositionAtomic percent composition

Formula in Hill system is C2H2*ClO2

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:
  • Any chemical element. 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.
  • Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
  • parantesis () or brackets [].
  • Common compound names.
Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose.
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.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions of molecular mass, molecular weight, molar mass and molar weight

  • Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Weights of atoms and isotopes are from NIST article.
Give us feedback about your experience with Molecular Weight Calculator.
Related: Molecular weights of amino acids
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Lewis Dot Structure Generator


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Lewis Dot Structure Finder

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Lewis Dot Structure For K

Apr 27, 2017 Most resonance structures and coordination compounds are also supported. Simply follow the steps below: If you do not already know the name or chemical formula of the molecule you wish to generate a dot structure for, you can browse the list of molecules at molcalc.org by clicking here. Lewis structures, also known as Lewis dot diagrams, Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule. A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds.