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Which of the following is expected to be less soluble in water: ZnS or HgS? Explain the answer in detail
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- (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…Would you expect calcite to be appreciably soluble in a solution whose pH is maintained at 4? A solution at pH? A solution containing 0.1 m H2S? where might you find such solutions in nature?Given this series of equilibrium reactions. See Image(a) Which way should the reaction to “tend” at high pH? Why?(b) Which way should the reaction to “tend” at low pH? Why? (c) What Fe(III) species would be least soluble?
- Write a balanced net ionic equation to show why the solubility of ZnCO3 (s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid.Consider only the FIRST STEP in the reaction with strong acid. Be sure to specify states such as (aq) or (s)(11) Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of CaF2 in 850.0 g of water. A) 0.00841 B) 0.0270 C) 0.00900 D) 0.0248 E) 0.0167Explain in detail why the KHT is much less soluble in KCl than in plain water
- When a solution of iron (III) is mixed with an iodide solution (e.g. KI), the resulting solution turns to a dark red-brown color, and a light vapor deposit of a similar color is sometimes observed around the puddle. Explain what is occuring in this system.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.2 litre carbogen (at S.T.P.) is passed through a solution of lime water to get 0.5 g white precipitate. The percentage of carbon dioxide gas in carbogen by volume is(a) 8 (b) 11.2(c) 5.6 (d) 22.4
- The molar solubility (symbolized as "s") of CaF2 in water in terms of its Ksp is: SE = (Ksp)1/2 s = (Ksp)1/3 s = (Ksp/4)1/3 s = (Ksp/6)1/3 (Ksp/27)1/4 S=How many grams of sample which contains 18.00% Na2O (61.98) should be taken for analysis in order to obtain a precipitate of Na3AsO3 (191.89) which weighs 0.3000 g?Predict the trend in solubility of the sodium halides in water using hard and soft acid-base (HSAB) theory.