››Percent ingredient by element
 Element Symbol Atomic Mass # the Atoms Mass Percent Helium He 4.002602 1 100.000%

››Calculate the molecular weightof a chemical link 0) location="/molarmass/" + urlencode(this.q.value); else alert("Please go into 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 get in a chemical formula or surname of a substance."); return false;">

Browse the list ofcommon chemical compounds.

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In chemistry, the formula load is a amount computed by multiplying the atomic weight (in atomic mass units) the each element in a chemical formula by the number of atoms that that element present in the formula, then adding all of these assets together.

The atom weights used on this website come native NIST, the national Institute that Standards and also Technology. We use the most usual isotopes. This is just how to calculation molar massive (average molecular weight), i m sorry is based on isotropically weight averages. This is no the exact same as molecule mass, i m sorry is the mass of a single molecule that well-defined isotopes. For bulk stoichiometric calculations, we room usually determining molar mass, i m sorry may also be called standard atomic load or average atomic mass.

If the formula provided in calculating molar fixed is the molecular formula, the formula load computed is the molecular weight. The portion by load of any atom or group of atom in a compound deserve to be computed by separating the total weight the the atom (or group of atoms) in the formula by the formula weight and also multiplying by 100.

Formula weights space especially useful in identify the family member weights of reagents and products in a chemical reaction. These relative weights computed native the chemistry equation room sometimes called equation weights.

Using the chemical formula of the compound and the periodic table that elements, we can add up the atom weights and calculate molecular load of the substance.

Finding molar fixed starts v units that grams every mole (g/mol). As soon as calculating molecular load of a chemistry compound, the tells united state how plenty of grams space in one mole of the substance. The formula load is merely the weight in atom mass devices of every the atom in a given formula.

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A typical request top top this site is to convert grams come moles. To complete this calculation, you need to know what problem you space trying come convert. The reason is the the molar mass of the substance affects the conversion. This site defines how to discover molar mass.

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