Homework Answers
Q17) in the given question they have asked for the least soluble substance in water, so methanol , hydrochloric acid and NaCl is more soluble in water in comparison to octanol, this is due to the reason that octanol has a long hydrophobic carbon chain which makes it less soluble in water, although it has hydroxyl group which helps in making hydrogen bonding with water, but 8 - membered carbon chain makes its solubility less. Whereas Nacl which is an ionic compound dissociate when dissolved in water, methanol forms hydrogen bonding with water which makes it more soluble in comparison to octanol which has a long hydrophobic chain of 8 carbon. HCl is a strong acid and it dissociate completely on being dissolved in water. So octanol (c is least soluble.
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17.
why is "c" the answer? doesnt it have H bonds?
17. Which of the following...
answer these please 17. The solubility of AgCl is 0.000 013 mol/L. Calculate the Ksp for...
answer these please
17. The solubility of AgCl is 0.000 013 mol/L. Calculate the Ksp for AgCl. 18. If the concentration of chloride ion remaining in solution after silver chloride has been precipitated is 0.2 M, what is the concentration of the silver ion? Kap of AgCl is 2.8 X 10-10 19. What is the experimental Ksp of CaCO3 if the residue after evaporation of a 1.00 L saturated solution is found to have a mass of 0.006 90 g?...
9. Consider a 0.15 M solution of H2SO4. Which of the following statements is NOT true?...
9. Consider a 0.15 M solution of H2SO4. Which of the following statements is NOT true? A) This solution would turn litmus to red. B) This solution could neutralize a base. C) This solution has a pH of 11.20. D) This solution could dissolve metal. E) none of the above 10. What is the concentration of the hydronium [Halo ons in a neutral solution? 11. What is the concentration of hydronium ions in an acidic solution? A) 0.0 M B)...
1.] Write the balanced chemical equations for the following acid-base neutralization reactions; H...
1.] Write the balanced chemical equations for the following acid-base neutralization reactions; HCI+ KOH HNO,+NaOH H2SO4+ KOH 24pK, of Carbonic acid, HCO, is 6.36. If an aqueous solution of carbonic acid is prepared such that (HCOs] is at 0.1 M and M, [H,CO] is at a) What is the pH of the solution? (Show your calculations). b) What is the [H'] of the solution? (Show your calculations) What is the [OH1 of the solution? (Show your calculations). c) 3] Saline...
chem301 exam2_hmwk02 F17 docx k solution chemistry part 1 : lonic equations, spectator ions, definition of...
chem301 exam2_hmwk02 F17 docx k solution chemistry part 1 : lonic equations, spectator ions, definition of molarity, dilutions A. What, if anything, precipitates from the mixture? Oct-17 1. Aqueous solutions of Ba(NO3)2(aq) and LizCO, (aq) are mixed. B. Write the complete ionic equation. 2. CaClaCaq) is added to Na2SO,(aq). Precipitate forms A. What precipitates from the mixture? 8. Write a balanced molecular equation for the reaction. C. Write the net ionic equation. D. What are the spectator ions? 3. 25.0g...
a)t.. (b) 4.48. (d) 13.89. (f) 5.32. -0.42 -19. Calculate the p-functions for each ion in...
a)t.. (b) 4.48. (d) 13.89. (f) 5.32. -0.42 -19. Calculate the p-functions for each ion in a solution that is (a) 0.0300 M in NaBr (b) 0.0200 M in BaBr2. (c) 5.5 X 10 M in Ba(OH) d) 0.020 M in HCl and 0.010 M in NaCI. (c) 8.7 X 10 M in CaCl, and 6.6 X 10-3 M in BaCl 2* (f) 2.8 x 10 M in Zn(NO,)2 and 6.6 X 10-7 M Cd(NO)2 -20. Convert the following p-functions...
Hi. can some one please explain me the solution for this question. the correct answer is...
Hi. can some one please explain me the solution for
this question. the correct answer is B. thanks.
6. What is the concentration of Zn(aq) ions in the solution made by adding water to zinc nitrate (0.10 mol) and ammonia (3.0 mol) so that the final volume of solution is 1.5 L? The Kb of Zn(NH).)" is 7.8 x 10° a) 4.9 x 10"M b) 9.5 x 10M c) 6.1 x 10M d) 2.8 x 10M e) 2.3 x 10M
13. Hydrogen Fluoride (HF) is a covalentens It is: ANonpolar B. Polar 14. Would you expect...
13. Hydrogen Fluoride (HF) is a covalentens It is: ANonpolar B. Polar 14. Would you expect water to dissolve Hydrogen Fluoride? A. Yes B. No 15. What is the best equation for the dissociation (ionization) using HF instead of HCl, understanding that HF is a WEAK electrolyte (and acid). A. HF(g) + H2O(l) HF (aq) B. HF(g) + H2O(1) - H +F C. HF(g) + H2O(l) HUF 16. You dissolve 1 mole of HF(g) in water and bring the volume...
Finding concentration... Help 6. What is the concentration of Zn²+ (aq) ions in the solution made...
Finding concentration... Help
6. What is the concentration of Zn²+ (aq) ions in the solution made by adding water to zinc nitrate (0.10 mol) and ammonia (3.0 mol) so that the final volume of solution is 1.5 L? The Kstab of [Zn(NH3)4]2 is 7.8 x 108 a) 4.9 x 10-'M b) 9.5 x 10-2 M c) 6.1 x 10-2 M d) 2.8 x 10-2 M e) 2.3 x 10-13 M
1. Using the given information answer the following questions with corresponding answers. (a) Serine is a diprotic acid...
1. Using the given information answer the following questions with corresponding answers. (a) Serine is a diprotic acid (Ka1 = 6.17 × 10-3 and Ka2 = 7.08 × 10-10) that can have three different forms in solution: H2S+, HS, and S- (Note: S is not sulfur in these formulas). What would be the concentration of H2S+ in the solution of 0.105M Na+S-? Group of answer choices 8.29 × 10-8 M 1.62 × 10-12 M 9.62 × 10-9 M 4.15 ×...
1- Calculating [H+] for Pure Water: In a certain acidic solution at 25 ∘C, [H+] is...
1- Calculating [H+] for Pure Water: In a certain acidic solution at 25 ∘C, [H+] is 100 times greater than [OH −]. What is the value for [OH −] for the solution? In a certain acidic solution at 25 , [] is 100 times greater than [ ]. What is the value for [ ] for the solution? 1.0×10−8 M 1.0×10−7 M 1.0×10−6 M 1.0×10−2 M 1.0×10−9 M 2. ± Acid-Base Relationships in Water: Water ionizes by the equation H2O(l)⇌H+(aq)+OH−(aq)The...
answer these please
17. The solubility of AgCl is 0.000 013 mol/L. Calculate the Ksp for AgCl. 18. If the concentration of chloride ion remaining in solution after silver chloride has been precipitated is 0.2 M, what is the concentration of the silver ion? Kap of AgCl is 2.8 X 10-10 19. What is the experimental Ksp of CaCO3 if the residue after evaporation of a 1.00 L saturated solution is found to have a mass of 0.006 90 g?...
9. Consider a 0.15 M solution of H2SO4. Which of the following statements is NOT true? A) This solution would turn litmus to red. B) This solution could neutralize a base. C) This solution has a pH of 11.20. D) This solution could dissolve metal. E) none of the above 10. What is the concentration of the hydronium [Halo ons in a neutral solution? 11. What is the concentration of hydronium ions in an acidic solution? A) 0.0 M B)...
1.] Write the balanced chemical equations for the following acid-base neutralization reactions; HCI+ KOH HNO,+NaOH H2SO4+ KOH 24pK, of Carbonic acid, HCO, is 6.36. If an aqueous solution of carbonic acid is prepared such that (HCOs] is at 0.1 M and M, [H,CO] is at a) What is the pH of the solution? (Show your calculations). b) What is the [H'] of the solution? (Show your calculations) What is the [OH1 of the solution? (Show your calculations). c) 3] Saline...
chem301 exam2_hmwk02 F17 docx k solution chemistry part 1 : lonic equations, spectator ions, definition of molarity, dilutions A. What, if anything, precipitates from the mixture? Oct-17 1. Aqueous solutions of Ba(NO3)2(aq) and LizCO, (aq) are mixed. B. Write the complete ionic equation. 2. CaClaCaq) is added to Na2SO,(aq). Precipitate forms A. What precipitates from the mixture? 8. Write a balanced molecular equation for the reaction. C. Write the net ionic equation. D. What are the spectator ions? 3. 25.0g...
a)t.. (b) 4.48. (d) 13.89. (f) 5.32. -0.42 -19. Calculate the p-functions for each ion in a solution that is (a) 0.0300 M in NaBr (b) 0.0200 M in BaBr2. (c) 5.5 X 10 M in Ba(OH) d) 0.020 M in HCl and 0.010 M in NaCI. (c) 8.7 X 10 M in CaCl, and 6.6 X 10-3 M in BaCl 2* (f) 2.8 x 10 M in Zn(NO,)2 and 6.6 X 10-7 M Cd(NO)2 -20. Convert the following p-functions...
Hi. can some one please explain me the solution for
this question. the correct answer is B. thanks.
6. What is the concentration of Zn(aq) ions in the solution made by adding water to zinc nitrate (0.10 mol) and ammonia (3.0 mol) so that the final volume of solution is 1.5 L? The Kb of Zn(NH).)" is 7.8 x 10° a) 4.9 x 10"M b) 9.5 x 10M c) 6.1 x 10M d) 2.8 x 10M e) 2.3 x 10M
13. Hydrogen Fluoride (HF) is a covalentens It is: ANonpolar B. Polar 14. Would you expect water to dissolve Hydrogen Fluoride? A. Yes B. No 15. What is the best equation for the dissociation (ionization) using HF instead of HCl, understanding that HF is a WEAK electrolyte (and acid). A. HF(g) + H2O(l) HF (aq) B. HF(g) + H2O(1) - H +F C. HF(g) + H2O(l) HUF 16. You dissolve 1 mole of HF(g) in water and bring the volume...
Finding concentration... Help
6. What is the concentration of Zn²+ (aq) ions in the solution made by adding water to zinc nitrate (0.10 mol) and ammonia (3.0 mol) so that the final volume of solution is 1.5 L? The Kstab of [Zn(NH3)4]2 is 7.8 x 108 a) 4.9 x 10-'M b) 9.5 x 10-2 M c) 6.1 x 10-2 M d) 2.8 x 10-2 M e) 2.3 x 10-13 M
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