Equation for dehydrating a hydrate of magnesium carbonate is shown below: MgCO3 • x H2O → MgCO3 + x H2O. x / 21 = 40.3044 / 84.3139. x = 21 * 40.3044 / 84.3139 ››More information on molar mass and molecular weight. The molar mass of this compound is 485.65 g/mol. Magnesium carbonate, most often referred to as "chalk", is also used as a drying agent on athletes' hands in rock climbing, gymnastics, and weight lifting. Magnesium Carbonate has a molar mass of 84.3139 grams. It has a role as an antacid and a fertilizer. MgCO3 molar mass = 84.3139 g/mol Converts grams of magnesium carbonate to moles or moles Magnesium carbonate to grams Molecular weight calculation: 24.3050 + 12.0107 + 15.9994*3 ›› Percent composition per element Magnesium Bicarbonate is an unstable compound of magnesium in solid state with the formula Mg(HCO 3) 2, it exists only in solutions. Data for MgCO3 molar mass 84 g.mol-1 K at 25 °C 6.8 x 10-6 (B) 2.6 x 10-º g.L- (D) 8.1 x 10- g.L- (A) 0.22 g L- (C) 3.1 x 10-g.L- Structure, properties, spectra, suppliers and links for: Magnesite, Magnesium carbonate, 13717-00-5, 53678-75-4, MgCO3. 1 mole of MgCO3 has a mass of 24.3 + 12 + (3 * 16) = 84.3 grams. It is a carbonate material having monoclinic crystal system. Carbon's molar mass is 12.0107 g/mol. It is a magnesium salt, a carbonate salt and a one-carbon compound. It exists only in solution and is formed by the action of water containing free carbon dioxide on magnesite, dolomite, dolomitic limestone and other minerals containing magnesium carbonate. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … It has 5 water molecules. Its hydrated forms, particularly the di-, tri-, and tetrahydrates occur as minerals. Magnesium Oxide has a molar mass of 40.3044 grams. The equation above states that 1 mole of MgCO3 • x H2O will produce 1 mole of MgCO3 + 1 mole of x H2O. Magnesium's molar mass is 24.3050 g/mol. The molar mass of MgCO 3 is 84.3139 g/mol. Magnesium carbonate is a magnesium salt with formula CMgO3. As a food additive magnesium carbonate is known as E504, for which the only known side effect is that it may work as a laxative in high concentrations. Median response time is 34 minutes and may be longer for new subjects. . What is K sp for this compound? Thus, we call it “heavy”. Oxygen's molar mass is... See full answer below. The molar solubility of magnesium carbonate is 1.8 × 10 –4 mol/L. 7.56 grams of MgCO3 = 7.56 ÷ 84.3 = 0.0897 moles of MgCO3. 5H 2 O. *Response times vary by subject and question complexity. What is the solubility of magnesium carbonate, MgCO3, in water at 25 °C? 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