KClO3 (Potassium chlorate) molar mass - Chemical Portal
https://www.webqc.org/molecular-weight-of-KClO3.html
WEBK: 39.0983, Cl: 35.453, O: 15.9994. Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (KClO 3) = ∑ Count i * Weight i =. Count (K) * Weight (K) + Count (Cl) * Weight (Cl) + Count (O) * Weight (O) =. 1 * 39.0983 + 1 * 35.453 + 3 * 15.9994 =. 122.5495 g/mol. Mass percent composition.
DA: 81 PA: 73 MOZ Rank: 60