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- Chemistry Br OH OH Pd catalyst, base (d) "Den Br OR OR Pd catalyst, base5. The molarity of an aqueous solution of NaOH is 0.0022 M.(a) What is the concentration of H3O+ in this solution?(b) What is the pH of the solution?(c) What is the OH- concentration in the solution?A 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.
- Which of the following is a strong acid in aqueous solution? (a) Mg(OH)2 (b) NH3 (c) H2SO4 (d) CH3COOH (e) AgClCOHSOH(ag) + H2On + CeHsO (aq) + H3O*(a9) Ka= 1.12 x 10-10 (a) Phenol is a weak acid that partially dissociates in water according to the equation above. Write the equilibrium-constant expression for the dissociation of the acid in water. (b) What is the pH of a 0.75 M CaHsOH(ag) solution? (C) For a certain reaction involving CaHsOH(ag) to proceed at a significant rate, the phenol must be primarily in its deprotonated form, C3H5O (eg). In order to ensure that the CsHsOH(aq) is deprotonated, the reaction must be conducted in a buffered solution. On the number scale below, circle each pH for which more than 50 percent of the phenol molecules are in the deprotonated form (CoHsO (aq). Justify your answer. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Justification: (d) CeHsOH(ag) reacts with NaOH(ag). Write a net ionic equation representing this reaction (aka: invasion equation). (e) What is the pH of the resulting solution when 30 mL of 0.40 M CSH5OH(aq) is added to 25 mL of 0.60 M NAOH. Show all work…calculate the pH of the following solution; (a)2.8 × 10–⁴M Ba (OH)2 (b) 5.2 × 10–⁴M HNO3·
- The conjugate acid of H2O isWrite the chemical reaction of HC2H3O2 with water. abor or lower concentratioPredict whether aqueous solutions of the following substances are acidic, basic, or neutral and write hydrolysis equations for the acidic and basic solutions. (a) CsBr; (b) Al(NO3)3; (c) KCN; (d) CH3NH3Cl
