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- Consider a 0.33 M solution of the diprotic acid H2X. H2X H+(aq)+ HX(aq)Ka1=3.3 10 4 HX H+(aq)+ X2(aq)Ka2=9.7 10 8 Calculate the pH of the solution and estimate [HX-] and [X2-].4. If 87 grams of K2SO4 (molar mass 174 grams) is dissolved in enough water to make 250 mL of solution, what are the concentrations of the potassium and the sulfate ions? [K*] [SO,? ] (A) (В) (C) (D) (E) 0.020 M 0.020 M 1.0 М 2.0 M 2.0 M 1.0 M 2.0 M 2.0 M 4.0 M 2.0 MIf it took 27.20 mL of 0.150 M NaOH to titrate 17.45 mL of an HCI solution, what is the molarity of the HCl solution? (A) 0.390 M. 0.0962 M. 0.234M. 0.137 M. E) 4.28 M.
- HCI could be om a 5,00mL HICI, 3. Calculate the molarity of the H3PO4 solution prepared as follows: 5.00 mL of 10.0 M phosphoric acid is diluted to 250 mL in a volumetric flask; next 25,00 mL of this solution is diluted to 500 mL in a volumetric flask, ofamlfari 16 m nYoroxide solutionCalculate [0H] for a solution with pH = 6.35Shure STRUCTURAL FORMULA MOLECULAR FORMULA LEWIS DOT STRUCTURE Pairs 16 SBP2 BrB S. Br::Br VS Br: 14 ClA :I: 4
- 2. Calculate the [H] in a solution of HCIO2 that has a pH of 3.78A road tanker carrying an acid was involved in an accident and its contents spilledon the road, iron drain covers began melting and fizzing as the acid ran over them. ASpecialist was called to se if the acid actually leaked into the nearby river.(a) Explain how the specialist could carry out a simple test to see if the river water contains some acid or not.(b) The word melting is incorrectly used in the report. Suggest a better name that should have been used.(c) Explain why drain covers began fizzing as the acid rain over them.Do the reactions below proceed in good yield from left to right as shown? a) b) yes v c) > Na HCI + HCI CI CI HO HN Na OH