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--- Hi, I need to know the answer and working out to this question. Molar mass of MgCO3 is 84.3139 g/mol Compound name is magnesium carbonate Convert between MgCO3 weight and moles Given that mass was lost from the copper (II) carbonate hydroxide hydrate during heating, in this decomposition reaction, how many moles of solid product were produced? Calculate the mass of magnesium needed to produce 12.1g of magnesium … Show all work for calculations including units with all values to receive full credit. 7.56 grams of MgCO3 = 7.56 ÷ 84.3 = 0.0897 moles of MgCO3. 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 The molar mass of this compound is 485.65 g/mol. It is a carbonate material having monoclinic crystal system. Equation for dehydrating a hydrate of magnesium carbonate is shown below: MgCO3 • x H2O → MgCO3 + x H2O. Magnesite, the mineral magnesium carbonate (MgCO 3), a member of the calcite group of carbonate minerals that is a principal source of magnesium. 5H 2 O. The mineral has formed as an alteration product from magnesium-rich rocks or through the action of magnesium-containing solutions upon calcite. 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. The molar mass of the solid product is 79.545 g/mol (number of moles = mass (g) / molar mass (g/mol)). The equation above states that 1 mole of MgCO3 • x H2O will produce 1 mole of MgCO3 + 1 mole of x H2O. A mixture of Calcium Carbonate and Magnesium Carbonate, with a mass of 10g, was heated to constant mass, with the final mass being 5.096g. It has 5 water molecules. Do a quick conversion: 1 grams Magnesium Carbonate = 0.011860440567925 mole using the molecular weight calculator and the molar mass of MgCO3. Magnesium Bicarbonate is an unstable compound of magnesium in solid state with the formula Mg(HCO 3) 2, it exists only in solutions. 3.327g CuO x 1 molCuO 1! 1 mole of MgCO3 has a mass of 24.3 + 12 + (3 * 16) = 84.3 grams. I need to know the percentage composition of the mixture, by mass. 7. Thus, we call it “heavy”. Magnesium carbonate, most often referred to as 'chalk', is also used as a drying agent on athletes' palms in rock climbing, gymnastics and weight lifting. 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. H2O will produce 1 mole of MgCO3 has a mass of this compound 485.65. The percentage composition of the mixture, by mass a quick conversion 1... Grams Magnesium carbonate = 0.011860440567925 mole using the molecular weight calculator and the molar mass of this compound 485.65... 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