This molar mass calculator can only handle two bracket levels at a time. Tricalcium phosphate would be entered as Ca3(PO4)2. For example, calcium carbonate would be entered as CaCO3, not caco3. The chemical formula should be entered using standard format. Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (ZnCl 2) Count i Weight i. Then, lookup atomic weights for each element in periodic table: Zn: 65.38, Cl: 35.453. ![]() This calculator is a convenient tool for calculating the molar mass of chemical compounds in lieu of using a periodic table. First, compute the number of each atom in ZnCl 2: Zn: 1, Cl: 2. ![]() These include consumption of pH adjustment chemicals for RO feedwater, solubilities of scale forming compounds in reverse osmosis systems, and cation rejection calculations using charge balance (meq/l) in nanofiltration systems. Many other calculations require conversion into moles. Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element in Zn (NO3)2.4H2O: Molar Mass (g/mol) Zn (Zinc) 1 × 65.409 65.409. ![]() Knowing the desired concentration of ClO2, the system integrator can calculate the consumption of each of the reactants using the stoichiometric relationship:ĢNaClO2 + NaOCl + 2HCl ↔ 2ClO2 + H2O + 3NaCl Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element in ZnCO3: Molar Mass (g/mol) Zn (Zinc) 1 × 65.409 65.409. For example, certain types of chlorine dioxide (ClO2) generators would use sodium hypochlorite (NaOCl), sodium chlorite (NaClO2) and hydrochloric acid (HCl). When calculating consumption of certain RO chemicals for reverse osmosis pretreatment or post-treatment, it is often necessary to convert into moles.
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