![]() ![]() This molar mass calculator can only handle two bracket levels at a time. Tricalcium phosphate would be entered as Ca3(PO4)2. Visualize trends, 3D orbitals, isotopes, and mix compounds. For example, calcium carbonate would be entered as CaCO3, not caco3. Interactive periodic table showing names, electrons, and oxidation states. ![]() The chemical formula should be entered using standard format. This calculator is a convenient tool for calculating the molar mass of chemical compounds in lieu of using a periodic table. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. 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. Formula: CaCl 2 Hill system formula: Ca 1 Cl 2 CAS registry number: 1 Formula weight: 110. 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 For example, certain types of chlorine dioxide (ClO2) generators would use sodium hypochlorite (NaOCl), sodium chlorite (NaClO2) and hydrochloric acid (HCl). ![]() According to the periodic table, 1 mol of U has a mass of 238.03 g, so the mass of 2 mol is twice that, or 476.06 g. It is also used in blast furnaces to reduce scaffolding (clumping and adhesion of elements that hinder the furnace charge from descending).When calculating consumption of certain RO chemicals for reverse osmosis pretreatment or post-treatment, it is often necessary to convert into moles. The periodic table shows that the atomic mass (rounded to two decimal points) of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g. Calcium chloride is used as a thinner in fabric softeners and as an ingredient in plastics and fire extinguishers. This may also be done using the anhydrous form of calcium chloride, which can be used to determine the moisture content of concrete. 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 CaCl2.6H2O: Molar Mass (g/mol) Ca (Calcium) 1 × 40.078 40.078. Now that we have the masses of calcium and both chlorine atoms, we can simply put them together to get the whole compound's molar mass, which is 110.98 g/mol.Ĭalcium chloride is used to speed up the early setting of concrete, however chloride ions cause steel rebar to corrode, therefore it should not be used in reinforced concrete. The molar mass must be multiplied by two to account for both chlorine atoms: We can see from the chemical formula that there are two chlorine atoms, and the molar mass of 35.45g/mol only accounts for one Cl atom. The molar masses of Ca (40.08g/mol) and Cl (35.45g/mol) must then be determined. 1: Moles to Mass Conversion with Elements. According to the periodic table, 1 mol of U has a mass of 238.0 g, so the mass of 2 mol is twice that, or 476.0 g. The calculated value makes sense because it is almost four times times the mass for 1 mole of aluminum. To get the molar mass of a compound, use the periodic table to calculate the molar masses of each element individually.Ĭalcium and chlorine are the two elements in our instance. The periodic table shows that the atomic mass (rounded to two decimal points) of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g. Prepare a concept map and use the proper conversion factor. The anhydrous salt is used as a desiccant since it is hygroscopic. De-icing and dust management are two of the most common applications for these chemicals. The molar mass is stated in g/mol and is defined as the mass of a particular substance divided by the quantity of that substance.Ĭalcium chloride is a salt with the chemical formula $ CaC $, where x = 0, 1, 2, 4, and 6. The molecular mass and relative molecular mass are not the same as the molar mass, but they are linked. The related quantity relative molecular mass is a unitless ratio of a molecule's mass to the unified atomic mass unit as defined by IUPAC. The periodic table lists the atomic mass of carbon as 12. Because they contain various isotopes of an element, multiple molecules of the same chemical may have different molecular weights. The molar mass of any substance is its atomic mass, molecular mass, or formula mass in grams per mole. Hint: The mass of a molecule is measured in daltons and is called molecular mass. ![]()
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