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7. The point d is the (A) Triple 8. Na-so point. (B) Melting Phase E (C) Critical Phase Phase (D) Boiling (E) Freezing

7. The point d is the (A) Triple 8. Na-so point. (B) Melting Phase E (C) Critical Phase Phase (D) Boiling (E) Freezing

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 18PS: Some lithium chloride, LiCl, is dissolved in 100 mL of water in one beaker, and some Li2SO4 is...
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2 7. The point d is the point. Phase (A) Triple (B) Melting (C) Critical (D) Boiling (E) Freezing 8. Na₂SO4 is added slowly to a solution that is 0,010 M in Ba, Sr, and Ca. Which compound will precipitate first? Ksp BaSO4: 1.5 x 10", SrSO4: 12.8 x 107, CaSO4: 4.0 x 10-12 (A) BaSO4 (B) SrSO4 (C) CaSO4 (D) All same time (E) None 9. The rate constant for a second-order reaction is 0.13 M¹1s. If the initial concentration of reactant is 0.26 mol/L, it takes (A) 1.0 (B) 4.4 x 103 s for the concentration to decrease to 0.13 mol/L. (C) 0.017 (D) 0.50 (E) 30 10. The final pOH after 27.8 mL of 0.050 M HCl solution is added to 33.8 mL of 0.128 M NaOH is:(A) 2.45 (B) 5.44 (C) 1.32 (D) 1.95 (E) 3.43 11. Calculate the percent dissociation of HF in 1.0 M HF (K₂= 7.2 x 10-4) and 1.0 M NaF.(A) 3.14 (B) 1.1 x 10-4 (C) 7.2 x 10-² (D) 1.1 x 10-3 (E) 7.2 x 10-4 12. What is the solubility of AgCl (in M) in a 0.039 M MgCl₂ solution? (Ksp = 1.56 x 10-10 for AgCl) (A) 2 × 10⁹ (B) 3.90 × 109⁹ (E) 5.6 × 10-10 (C) 2.66 x 10-11 (D) 1.22 x 10-10 13. The greater the intermolecular forces the lower the. (A) melting point (B) boiling point (D) viscosity (E) vapor pres (C) surface tension 14. In the following equation, which is the conjugate base of HOBr? HOBr + H₂O OBr + H30* (C) H₂O* (A) H₂O (E) None (B) OBr (D) HOBr 15. If a process is exothermic and spontaneous at all temperatures, then what must be true? (A) AS >0 (B) AH>0 (C) AG=0 (Ε) ΔΗ = (D) AS <0 16. Which of the following salts would form an acidic solution in water: (A) NaC₂H30₂ (E) Car (B) KNO3 (D) NH4Cl (C) CaCl₂ 17. Calculate the molar solubility of Ag2S (Ksp = 1.6 × 10-49) in water. (A) 1.6 × 10-5 (B) 1.6 x 10-49 (E) 2. (C) 1.0 x 10-15 (D) 3.4 × 10-¹7 Phase Phase
Transcribed Image Text:2 7. The point d is the point. Phase (A) Triple (B) Melting (C) Critical (D) Boiling (E) Freezing 8. Na₂SO4 is added slowly to a solution that is 0,010 M in Ba, Sr, and Ca. Which compound will precipitate first? Ksp BaSO4: 1.5 x 10", SrSO4: 12.8 x 107, CaSO4: 4.0 x 10-12 (A) BaSO4 (B) SrSO4 (C) CaSO4 (D) All same time (E) None 9. The rate constant for a second-order reaction is 0.13 M¹1s. If the initial concentration of reactant is 0.26 mol/L, it takes (A) 1.0 (B) 4.4 x 103 s for the concentration to decrease to 0.13 mol/L. (C) 0.017 (D) 0.50 (E) 30 10. The final pOH after 27.8 mL of 0.050 M HCl solution is added to 33.8 mL of 0.128 M NaOH is:(A) 2.45 (B) 5.44 (C) 1.32 (D) 1.95 (E) 3.43 11. Calculate the percent dissociation of HF in 1.0 M HF (K₂= 7.2 x 10-4) and 1.0 M NaF.(A) 3.14 (B) 1.1 x 10-4 (C) 7.2 x 10-² (D) 1.1 x 10-3 (E) 7.2 x 10-4 12. What is the solubility of AgCl (in M) in a 0.039 M MgCl₂ solution? (Ksp = 1.56 x 10-10 for AgCl) (A) 2 × 10⁹ (B) 3.90 × 109⁹ (E) 5.6 × 10-10 (C) 2.66 x 10-11 (D) 1.22 x 10-10 13. The greater the intermolecular forces the lower the. (A) melting point (B) boiling point (D) viscosity (E) vapor pres (C) surface tension 14. In the following equation, which is the conjugate base of HOBr? HOBr + H₂O OBr + H30* (C) H₂O* (A) H₂O (E) None (B) OBr (D) HOBr 15. If a process is exothermic and spontaneous at all temperatures, then what must be true? (A) AS >0 (B) AH>0 (C) AG=0 (Ε) ΔΗ = (D) AS <0 16. Which of the following salts would form an acidic solution in water: (A) NaC₂H30₂ (E) Car (B) KNO3 (D) NH4Cl (C) CaCl₂ 17. Calculate the molar solubility of Ag2S (Ksp = 1.6 × 10-49) in water. (A) 1.6 × 10-5 (B) 1.6 x 10-49 (E) 2. (C) 1.0 x 10-15 (D) 3.4 × 10-¹7 Phase Phase
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