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


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

Browse the perform ofcommon chemical compounds.

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››More details onmolar mass and molecular weight

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

Finding molar mass starts v units that grams every mole (g/mol). When calculating molecular weight of a chemistry compound, that tells united state how many grams are in one mole of that substance. The formula load is simply the weight in atom mass systems of every the atom in a given formula.

A common request top top this site is to transform grams come moles. To finish this calculation, you need to know what problem you are trying to convert. The factor is the the molar mass of the substance affects the conversion. This site defines how to find molar mass.

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

Formula weights are especially useful in determining the loved one weights the reagents and products in a chemistry reaction. These relative weights computed native the chemistry equation are sometimes referred to as equation weights.

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

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


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