CALCIUM PEROXIDE OCTAHYDRATE (CaO2.8H2O) SYNTHESIS
CaCO3 + 2 HCl --> CaCl2 + CO2 + H2O
CaCl2 + 2 NH3 + H2O2 + 8 H2O --> CaO2.8H2O + 2 NH4+ + Cl-
Question: Calculate the percentage yield of the product you have obtained.(just find the theoritical value)
procedure:
5 g of pure CaCO3 is added in small portions to 10 mL of water and 20 mL of 18% HCl in a 100 mL beaker and mixed with a bottle. During this process, the mixture should be boiled in order to remove the CO2 formed. When the CaCO3 addition is complete, it is observed that a sufficient amount of precipitate is formed at the bottom of the container. The solution is filtered while hot, the excess water is evaporated and cooled with ice water. Thereupon, he says 25-30 mL of 6% H2O2 solution, 5 mL. NH3 and 100 mL water are gradually added with stirring. After stirring for a while, the crystals formed are filtered, washed several times with water and dried in a desiccator.
!(Work in a 1: 4 ratio.)!
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