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16 Nov 2019
Questions 9 10 11 12 13 14 show work please
Consider the following equilibrium PCI_3(g) + Cl_2(g) PCl_5(g); Delta H = -92 kJ The concentration of PCl_3 at equilibrium may be increased by A) The addition of PCI_3 B) decreasing the temperature C) increasing the pressure D) adding Cl_2 to the system. E) the addition of neon. The rate constant for a first-order reaction is 1.8 times 10^-2 s^-1 at 672 K and 5.1 times 10^-2 s^-1 at 898 K. What is the activation energy? A) 9.9 kJ/mol B) 10 kJ/mol C) 23 kJ/mol D) 23 kJ/mol E) 2800 kJ/mol What is the pH of a 0.043 M HCIO_4 solution? A) 3.15 B) 12.63 C) 15.37 D) 1.37 E) 10.85 Which of the following pairs of species is not a conjugate acid-base pair? A) HNO_2, NO_2^+ B) HOCL, OCl^- C) H_2CO_3, HCO_3 D) HSO_4^-, SO_4^2- E) O^2-, OH^- For the formation of 1 mol of nitrosyl chloride at a given temperature, Delta H = -36 kJ. NO(g) + 1/2 Cl_2(g) rightarrow NOCl(g) The activation energy for this reaction is 78 kJ/mol. What is the activation energy for the reverse reaction? A) 42 kJ/mol B) 114 kJ/mol C) -114 kJ/mol D) 78 kJ/mol E) -36 kJ/mol The K_a for benzoic acid is 6.3 times 10^-5. What is K_b for the benzoate ion? A) 1.6 times 10^4 B) 1.6 times 10^-10 C) 6.3 times 10^-9 D) 6.3 times 10^-5 E) 6.3 times 10^-19
Questions 9 10 11 12 13 14 show work please
Consider the following equilibrium PCI_3(g) + Cl_2(g) PCl_5(g); Delta H = -92 kJ The concentration of PCl_3 at equilibrium may be increased by A) The addition of PCI_3 B) decreasing the temperature C) increasing the pressure D) adding Cl_2 to the system. E) the addition of neon. The rate constant for a first-order reaction is 1.8 times 10^-2 s^-1 at 672 K and 5.1 times 10^-2 s^-1 at 898 K. What is the activation energy? A) 9.9 kJ/mol B) 10 kJ/mol C) 23 kJ/mol D) 23 kJ/mol E) 2800 kJ/mol What is the pH of a 0.043 M HCIO_4 solution? A) 3.15 B) 12.63 C) 15.37 D) 1.37 E) 10.85 Which of the following pairs of species is not a conjugate acid-base pair? A) HNO_2, NO_2^+ B) HOCL, OCl^- C) H_2CO_3, HCO_3 D) HSO_4^-, SO_4^2- E) O^2-, OH^- For the formation of 1 mol of nitrosyl chloride at a given temperature, Delta H = -36 kJ. NO(g) + 1/2 Cl_2(g) rightarrow NOCl(g) The activation energy for this reaction is 78 kJ/mol. What is the activation energy for the reverse reaction? A) 42 kJ/mol B) 114 kJ/mol C) -114 kJ/mol D) 78 kJ/mol E) -36 kJ/mol The K_a for benzoic acid is 6.3 times 10^-5. What is K_b for the benzoate ion? A) 1.6 times 10^4 B) 1.6 times 10^-10 C) 6.3 times 10^-9 D) 6.3 times 10^-5 E) 6.3 times 10^-19
Nelly StrackeLv2
1 Apr 2019