Li2SeO3 - molar and relative molecular mass

← Molecular and molar mass

Relative molecular weight of Li2SeO3: 140.8402
Molar mass of Li2SeO3: 140.8402 g/mol (0.14084 kg/mol)

Element	Total atoms	Atomic mass	Total mass
Li (Lithium)	2	6.941	13.882
Se (Selenium)	1	78.96	78.96
O (Oxygen)	3	15.9994	47.9982
			140.8402

Calculation of the relative molecular and molar mass of Li2SeO3

Mr[Li2SeO3] = Ar[Li] * 2 + Ar[Se] + Ar[O] * 3 = 6.941 * 2 + 78.96 + 15.9994 * 3 = 140.8402
Molar mass (kg/mol) = Mr[Li2SeO3] : 1000 = 140.8402 : 1000 = 0.14084 kg/mol

Li2SeO3: percent composition by element

Lithium (Li) = 13.882 : 140.8402 * 100 = 9.857 %
Selenium (Se) = 78.96 : 140.8402 * 100 = 56.064 %
Oxygen (O) = 47.9982 : 140.8402 * 100 = 34.08 %

Molar mass calculator

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Relative molecular weights of other substances

CoSeO3 [185.891395]
MgSeO3 [151.2632]

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