››Percent ingredient by element
Element Symbol Atomic Mass # that Atoms Mass Percent
LithiumLi6.941246.457%
OxygenO15.9994153.543%


››Calculate the molecular weightof a chemical link 0) location="/molarmass/" + urlencode(this.q.value); else alert("Please enter a chemistry formula or surname of a substance."); return false;">Enter a chemistry formula: 0) location="/molarmass/" + urlencode(this.form.q.value); else alert("Please enter a chemical formula or surname of a substance."); return false;">

Browse the list ofcommon chemistry compounds.

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››More details onmolar mass and also molecular weight

In chemistry, the formula weight is a quantity computed by multiply the atomic weight (in atomic mass units) of each element in a chemistry formula by the number of atoms the that facet present in the formula, then adding all the these products together.

If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The portion by load of any kind of atom or group of atoms in a compound deserve to be computed by dividing the complete weight the the atom (or team of atoms) in the formula by the formula weight and multiplying by 100.

Formula weights room especially useful in identify the loved one weights that reagents and also products in a chemistry reaction. These family member weights computed indigenous the chemical equation space sometimes dubbed equation weights.

Using the chemical formula of the compound and the routine table the elements, us can add up the atomic weights and also calculate molecular load of the substance.

Finding molar mass starts v units that grams per mole (g/mol). As soon as calculating molecular load of a chemistry compound, it tells us how countless grams room in one mole of the substance. The formula weight is just the load in atomic mass units of every the atom in a given formula.

A typical request ~ above this site is to transform grams to moles. To finish this calculation, you need to know what problem you are trying to convert. The factor is that the molar fixed of the problem affects the conversion. This site defines how to discover molar mass.

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The atomic weights provided on this website come native NIST, the national Institute the Standards and also Technology. We use the most typical isotopes. This is how to calculate molar mass (average molecular weight), i beg your pardon is based upon isotropically weight averages. This is no the very same as molecule mass, i m sorry is the massive of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, i m sorry may additionally be dubbed standard atomic weight or typical atomic mass.


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