Answer Happy

9. [1 point] Which of the following statements is True? A) According to the Debye-Hückel limiting law, the mean ionic activity electrolyte solution, Yu, is negative. B) The molar conductivity of an electrolyte solution increases with the electrolyte. C) Electrical resistance is the inverse the electrical conductivity. D) The "Law of independent migration of ions" holds in at any concentr electrolyte. E) In water at 25°C, the limiting molar conductivity of Lition is less tha 10. [1 point] Which of the following electrolytic solutions has the larg conductance? A) 2M B) 0.02 M C 0.2 M D) 0.002 M E) C 11. [1 point] Which one of the following sequences of Group 1 cations increasing single-ion molar conductivity, Amº, in aqueous solution? A) H+ < Li+ < Na+ < K+ BH+ < K+ < Li+ < Na+ C) H+ < D) K* < Na+ < Li+ < H+ E) Lit < Na+ < K+ <H+ 12. [1 point] Electrolytic conduction is due to the movement of A) electrons B) ions C) atoms D) molecules E) electrons as 13. [1 point] If for a solution of an electrolyte, t+ is the transport nu then the transport number of the anion t- is equal to B) t+/2 A) (1 - t)/2 C) 1 + + D) 1 - t+ E) None of t 14. [1 point] If Am is the molar conductivity at concentration cand conductivity, the degree of dissociation, a, is B) a = 1 - Am/ Amº a == A) a = Amº - Am D) a = (1\mº - Am)/Amº E) None of these answers 15. [1 point] When a concentrated solution of an electrolyte is dilu A) its specific conductivity increases B) its molar conductivity decreases. C) both specific and molar conductivity increase. D) its specific conductivity decreases and molar conductivity increas