# JUST A MOMENT

Molar mass of Al2(SO4)3 = 342.150876 g/mol

This compound is also known as Aluminium Sulfate.

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Convert grams Al2(SO4)3 lớn moles or moles Al2(SO4)3 lớn grams

Molecular weight calculation:**26.981538*2 + (32.065 + 15.9994*4)*3**

**››Percent composition by element**

Element | Symbol | Atomic Mass | # of Atoms | Mass Percent |

Aluminium | Al | 26.981538 | 2 | 15.772% |

Oxygen | O | 15.9994 | 12 | 56.113% |

Sulfur | S | 32.065 | 3 | 28.115% |

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››More information onmolar mass & molecular weightIn chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how khổng lồ calculate molar mass (average molecular weight), which is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.

If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight & multiplying by 100.

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Using the chemical formula of the compound and the periodic table of elements, we can địa chỉ cửa hàng up the atomic weights and calculate molecular weight of the substance.

A common request on this site is to convert grams khổng lồ moles. Lớn complete this calculation, you have lớn know what substance you are trying khổng lồ convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass.

Formula weights are especially useful in determining the relative weights of reagents và products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights.

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Finding molar mass starts with units of grams per mole (g/mol). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.

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