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There are 4 easy steps to find the molar mass of CoCl2 based on its chemical formula.
Molar Mass, Molecular Weight and Elemental Composition Calculator Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of CoCl 2 (Cobalt(II) chloride) is 129.8392 g/mol
Determine the molar mass of cobalt (II) chloride hexahydrate. First, compute the molar mass of CoCl 2 ⋅ 6 H 2 O. Find the atomic masses: Co = 58.93 g/mol, Cl = 35.45 g/mol, H = 1.01 g/mol, O = 16.00 g/mol. Molar mass of CoCl 2 = 58.93 g/mol + 2 × 35.45 g/mol = 129.83 g/mol.
Chrysotile has the following percent composition: 28.03% Mg, 21.60% Si, 1.16% H, and 49.21% O. The molar mass for chrysotile is 520.8 g/mol. Mg 3 Si 2 H 3 O 8 (empirical formula), Mg 6 Si 4 H 6 O 16 (molecular formula) Polymers are large molecules composed of simple units repeated many times.
Cobalt chloride can be prepared in aqueous solution from cobalt(II) hydroxide or cobalt(II) carbonate and hydrochloric acid: CoCO 3 + 2 HCl (aq) → CoCl 2 (aq) + CO 2 + H 2 O Co(OH) 2 + 2 HCl (aq) → CoCl 2 (aq) + 2 H 2 O. The solid dihydrate and hexahydrate can be obtained by evaporation.
Solutions to the Molar Mass Practice Worksheet: Important note to students: All of the units given here are “grams per mole”, which may be abbreviated as “g/mol”, “grams/mol”, or “g . mol-1”, depending on how your teacher likes to see it written.
Calculate the normality of Cu2+ in a solution that is made by dissolving 8.77 g of Au(NO 3 ) 3 in enough water to make 175 mL of solution when copper metal is added to the solution.
