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AgNO3
2 K2Cr2O7 + 8 H2SO4 + 3 CH3CH2OH → 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 11 H2O
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- Addition of phenolphthalein to an unknown colorlesssolution does not cause a color change. The addition ofbromthymol blue to the same solution leads to a yellowcolor. (a) Is the solution acidic, neutral, or basic? (b) Whichof the following can you establish about the solution: (i) Aminimum pH, (ii) A maximum pH, or (iii) A specific rangeof pH values? (c) What other indicator or indicators wouldyou want to use to determine the pH of the solution moreprecisely?Explain how you would separate benzoic acid from NaCl in aqueous solution. Include relevant qualitative test(s) in your explanation.When the 2.5M NaOH (15mL) solution is added to the solution of 50:50 mixture of benzophenone and benzocaine acid (2.001g) , in diethyl ether (30 mL), a reaction takes place between NaOH and one of the components in the mixture. Draw a scheme that shows that reaction. Include electron-push arrows
- C6H5NH2 + H2O <-> C6H5NH3+ + OH-. Aniline, a weak base, reacts with water according to the reaction. (a) a sample of aniline is dissolved in water to produce 25.0 mL of 0.10 m solution. The pH of the solution 8.82. Calculate the equilibrium constant, Kb, for this reaction (b) What is the percent disassociation for the solution in part (a) (c) 25.0 mL of 0.10 HCI was then added in a titration experiment. What is the pH at the equivalence point?3b i don't get why the answer is 2Twenty sodium salicylate tablets labeled 325 mg were dispersed in sufficient water to make 200.0 ml. A 15.0-ml aliquot of the filtrate was titrated to a bromophenol blue end point in the usual way by 29.11 ml of 0.1000 N hydrochloric acid. Calculate the amount of sodium salicylate in each tablet and, from that, the percentage of the labeled amount. Hint: Use the above formula.
- [1a] Calculate for the concentration of the reagent grade acid.Hydrochloric acid in the stomach is a very strong acid compared to ethanoic acid that is found in citrus fruits. Explain (with reference to formation of hydronium ions) why hydrochloric acid has a much lower pH compared to ethanoic acid. You should support this answer with accompanying ionic equations.You have a solution of the three molecules below in a suitable organic solvent. NH₂ ملو OH In addition to the organic solvent and the three molecules, you have access to the following solutions: 1 M NaOH 1 M HCI 1 M CH3COOH 1 M Na2HPO4 Outline a method for how you would separate this solution into its component parts and briefly explain your rationale. You do not need to provide the level of detail shown in the Experimental; just the basics will be sufficient (e.g. wash with _____ to separate component __, then wash with _____ to separate component Y, etc.). Hint: you might need to search their pką values! You can write in paragraph style or organize your steps in a numbered list. 111)
- When the 2.5M NaOH solution is added to the solution of 50:50 mixture in diethyl ether (30 mL), a reaction takes place between NaOH and one of the components in the mixture. Draw a scheme that shows that reaction. Include electron-push arrows.Give Detailed Solution (don't give Handwritten answer)). What reaction occurs when sodium hydroxide is added to the stearic acid in cyclohexane and water?How does this change the solubility of cyclohexane in water? Does HCl reverse this reaction and if sowhy? Does sodium chloride have the same type of behavior as stearic acid or is it different? Explainwhy these two solutes are the same or different. (do not copy an answer from chegg, please)