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- 12.1 g of goztic acid was dissolved in water weighing 87.9 G. The mass fraction (%) of acid in the solution was calculated.A 9.12g of KClMgCl26H2O is to be dissolved to prepare a solution in sufficient water to give 1.500L. What is the molar analytical concentration of KClMgCl2 in this solution?Regarding the stability of the permanganate solution: describe the reactions that occur when it decomposes. Indicate which factors catalyze its decomposition and indicate how they can be controlled.
- On the first phase, which is prepared by dissolving some bromine (Br2) in 10 mL of carbon sulfur at constant pressure and 25 ° C, 20 mL of water is added at the same temperature. After waiting for the well-shaken mixture to come to equilibrium, the carbon sulfur and water phases are completely separated and the bromine amounts are determined. It has been experimentally determined that there is 1.29 g of bromine in the carbon sulfur phase and 0.0064 g of bromine in the water phase. a) Partition coefficient of bromine between carbon sulfur and water phases ......................determined as. b) If 2.2 g of bromine were dissolved in carbon sulfide initially at the same pressure and temperature, the mass of bromine passing into the water phase ...................... ...... ..................... (MBr: 79,904 g / mol) Note: enter only required numerical values and units in the spaces in the question.On the first phase, which is prepared by dissolving some bromine (Br2) in 10 mL of carbon sulfur at constant pressure and 25 ° C, 20 mL of water is added at the same temperature. After waiting for the well-shaken mixture to come to equilibrium, the carbon sulfur and water phases are completely separated and the bromine amounts are determined. It has been experimentally determined that there is 1.29 g of bromine in the carbon sulfur phase and 0.0064 g of bromine in the water phase. a) Partition coefficient of bromine between carbon sulfur and water phases b) If 2.2 g of bromine were dissolved in carbon sulfide initially at the same pressure and temperature, the mass of bromine passing into the water phase (MBr: 79,904 g/mol)write the method for preparation of caustic soda.
- Which among these is/are properties for the type of precipitate required in gravimetric analysis? Hygroscopic Known composition Reactive with atmospheric constituents Large particlesWhy we use ethanol to rinse the crystal instead of distilled water Better yield of crystal can be obtained if the alum solution is placed into refrigerator for a few days. Explain why. Solubility of alum, KAl(SO4)2•12 H2O in an aqueous solution at 0 degree Cecius is 114 g/L. In this experiment, calculate the weight of alum remain in the solution after crystallization completed. (Volume = 40 mL)Write notes on any two of the followings (a) Elevation of boiling point of a solution (b) Thermodynamic considerations of equilibrium constant (c) Langmuir adsorption isotherm.
- The value of the Solubility Product Constant for magnesium fluoride is Write the reaction that corresponds to this Ksp value. + + please write clearlyHow to minimize supersaturation and thus lead to crystalline precipitate?Write the balanced neutralization reaction that occurs between H2SO4 and KOH in aqueous solution. Phases are optional.