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.

计算分子量(分子质量)

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

分子质量,分子量,摩尔质量和摩尔质量的定义