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- 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.(A) if both sentences are true,(B) if both sentences are false,(C) if the first sentence is true but the second is false, and(D) if the first sentence is false but the second is true. 1. Insufficient dissolved oxygen is necessary for the life of fish and other aquatic organisms. As aquatic photosynthesis is light dependent, the dissolved oxygen produced will peak during daylight hours and decline at night. 2. The solubility of oxygen in water increases at colder temperatures, and decreases at higher temperatures. DO can be measured in milligrams of oxygen (O2) per liter of water. 3. The ideal electrical conductivity of totally pure water is 0.055 microSiemens, whereas typical deionized water has an electrical conductivity of 0.1 microSiemens. The freezing point of water at 1 atm is 100degC. 4. When water is mixed with metals, a metal hydroxide is formed and oxygen gas is evolved. The evolution of the oxygen gas from the reaction of metals and water is indicated by the hastened…Question 27 of 40 Submit Construct the expression for Ksp for solid Ba3(P04)2 in aqueous solution. Вa:(РOq)2(s) — З Ва" (аq) + 2 РО," (aq) 1 Based on your knowledge of how the solid will dissociate in aqueous solution, use the tiles to form the expression. Ksp ORESET [Ba3(PO4)2] 2[Ba3(PO4)2 3[Ba3(PO4)2 [Ba3(PO4)2l° [Ba3(PO4)21° [Ba*] 3[Ba] [Ba*j [Ba²*] 3[Ba2*] [Ba*j* [PO,*] 2[PO,] [PO,*]? [PO,] 2[PO,] [PO4]? 3[PO,*] [PO,*]°
- Potassium Ferrioxalate is mixed with in 50 mL of 1 M H2SO4 In a beaker , it is then placed one-half of this solution in another beaker in the sun and the other half in a cabinet in the dark. the color of both solutions after 0, 5, 15, and 30 minutes are : In the sun it stayed clear the whole 30 min and the sample in the darkness of the cabinet turned light green, Briefly explain your observations in terms of the photochemical properties of ferrioxalate.Summary of Level of Saturation in chemistry solutionsa) Calculate the normality and formality of a potassium permanganate solution of which 35.00 mL are equivalent to 0.2500 g of 98% pure calcium oxalate. b. How many microliters of a commercial hydrogen peroxide solution (assume the solution is approximately 3.5% w / v) will react with 35.00 mL of a solution whose formality was obtained in the previous part?
- Formation constant and Gibbs free energy For the complex formation reaction where Mis any metal and L is any ligand, M+ + 2L = [ML2]* Kr is the formation constant for the complex at equilibrium and AG is the Gibbs free energy change for the reaction at equilibrium. The formation constant (K) can be related to the Gibbs free energy change (AG°) for a reaction by the equation AG° = RT In Kr where T is the temperature in kelvins and R is the gas constant equal to 8.314 J K. mol. The complex formation is generally a spontaneous process; thus, the Gibbs free energy change is negative. Part B Calculate the formation constant for the formation of [Cu(en) (H2O)4 from (Cu(H20)6]+, given that AG° is -60.1kJ - mol at 298 K.(d) Why is complete solid solubility likely to occur in substitutional solid solutions but not in interstitial solid solutions?Explain why limestone (CacO3) would dissolve more readily in an aqueous solution that has continuous bubbling of CO2 through it than in distilled water protected from air. (Use chemical equations as appropriate.)
- The compound X2Y is only partially dissociated in water solution to form X+ and Y2- ions. A 0.0100 m solution is found to freeze at - 0.040°C. Calculate the apparent percent dissociation of X2Y. Kf for water = 1.86°C/m. 42 % 56 % 58 % 79 % 85 %TWhich of the folle solution? Choose the will more more likely is added to the гад likely form when answer my. EDTA - Compter ca - EDTA - Compler 3. - my In- Cain. tathich of the following clour of metads is more 9 to form complex molecules with Lifand? す。 Alkalimetats 2. Alkali earth Transition metode none of these 3₁ 4. LikelyProfessor Acetico Acido has assigned the analysis of unknown organic compound samples to Al Coholbased on their solubility behavior. The summary of the solubility profile are tabulated below along with thepossible structures of the samples. Identify each unknown sample by matching the respective solubility profilewith the given structures. Briefly explain the reason for your answer.
