Which of the following statements is correct regarding the solubility of CaC2O4: a) Its solubility in...
Which of the following statements is correct regarding the solubility of CaC2O4:
a) Its solubility in 0.1 M NaC2O4 is higher than it is in pure water
b) Its solubility in 0.1 M NH3 is higher than it is in pure water
c) Its solubility in 0.1 M Ca(NO3)2 is higher than it is in pure water
d) Its solubility in an aqueous solution buffered at pH = 1.50 is higher than it is in pure water
Homework Answers
Calcium oxalate dissociates as
CaC2O4 <======> Ca2+ + C2O4 2-
At lower pH calcium oxalate will be more soluble as H+ removes oxalate ion from the solution making the calcium oxalate to be more soluble.
The correct answer is
d) Its solubility in an aqueous solution buffered at pH = 1.50 is higher than it is in pure water
Add Answer to:
Which of the following statements is correct regarding the
solubility of CaC2O4:
a) Its solubility in...
Which of the following statements regarding aqueous solution pH at 25*C is correct: a) For a...
Which of the following statements regarding aqueous solution pH at 25*C is correct: a) For a basic solution, pOH < 7 and [H30+] > 1x10^(-7) M b) For a basic solution, [OH-] > 1x10^(-7) M and pH > 7 c) For an acidic solution, pH < 7 and [OH-] > 1x10^(-7) M d) For an acidic solution, [H3O+] > 1x10^(-7) M and pOH < 7
Compare the solubility of calcium carbonate in each of the following aqueous solutions: Clear All 0.10...
Compare the solubility of calcium carbonate in each of the following aqueous solutions: Clear All 0.10 M Ca(NO3)2 More soluble than in pure water 0.10 MK2CO3 Similar solubility as in pure water 0.10 M KCH3COO Less soluble than in pure water. 0.10 M NH NO3
Scoring: Your score will be based on the number of correct matches minus the number of...
Scoring: Your score will be based on the number of correct matches minus the number of incorrect matches. There is no penalty for missing matches. Use the References to access important values if needed for this question. Compare the solubility of calcium phosphate in each of the following aqueous solutions: Clear All 0.10 M Ca(NO3)2 More soluble than in pure water. 0.10 M K3PO4 Similar solubility as in pure water. 0.10 M NaNO3 Less soluble than in pure water. 0.10...
e. 6.2x10 M Which of the following best describes what happens to the solubility of Pbly...
e. 6.2x10 M Which of the following best describes what happens to the solubility of Pbly when it is dissolved in a 0.10 M Nal solution, compared with pure water? For Pblz, Ksp=6.5 x 10 a. Pbly is more soluble in 0.10 M Nal solution than in pure water b. Pbl, is less soluble in 0.10 M Nal solution than in pure water c. the solubility of Pbly is the same in both a 0.10 M Nal solution and in...
. Which of the following statements is not true regarding benzoic acid acids? a. The neutral...
. Which of the following statements is not true regarding benzoic acid acids? a. The neutral acid is the predominant species in aqueous solution at pH <2. b. The anionic carboxylate is the predominant species in aqueous solution at pH >7. c. Sodium benzoate is less soluble in water than benzoic acid. d. Benzoic acid is extracted out of diethyl ether by treatment with aqueous sodium bicarbonate. ANSWER: c Can you explain why the answers a,b,d are wrong please
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of...
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of the solution b. Add a solution of Pb(NO3)2 c. Add a solution of KCI d. Both band e. None of the above the Ky of a compound is constant at constant tempera mperature, 6. In which of the following aqueous solutions would you expect AgBr to have the HIGHES solubility? a. 0.10 M LIBE b. 0.10 M AgNO3 c. 0.20 M NaBr d. 0.15...
answer 1-4 Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The...
answer 1-4
Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The attraction of the water to the ions in NaCl is through dipole-dipole IFs. Water is considered the solute and NaCl the solvent. The partially positive oxygen in water is attracted to the chloride ion. d. The process of separating the sodium ions from the chloride ions is endothermic. All of these statements are true. polar For the following solution, describe the deviation with respect...
Compare the solubility of lead carbonate in each of the following aqueous solutions: Clear All 0.10...
Compare the solubility of lead carbonate in each of the following aqueous solutions: Clear All 0.10 M Pb(NO3)2 More soluble than in pure water. 0.10 M (NH4)2CO3 Similar solubility as in pure water. 0.10 M NH NO3 Less soluble than in pure water 0.10 M KCH,COO
Which of the following is TRUE regarding dissolving a salt in water? a) The boiling point...
Which of the following is TRUE regarding dissolving a salt in water? a) The boiling point of the solution is lower than that of pure water. b) The freezing point of the solution is higher than that of pure water. c) The vapor pressure of a solution of NaCl will be higher than that of a solution of CaCl2. d) The osmotic pressure will increase as the molarity of the solution increases. e) All of these are true.
Spermine (structure shown) is a compound isolated from sperm. Which of the following statements correctly describes...
Spermine (structure shown) is a compound isolated from sperm. Which of the following statements correctly describes an aqueous solution of spermine? NH2(CH2)3NH(CH2)4NH(CH2)3NH2 Question 2 options: A) The hydroxide ion concentration in the solution would be greater than that in pure water. B) The hydronium ion concentration in the solution would be greater than that in pure water. C) The solution would be acidic. D) The pH of the solution would be equal to that of pure water.
Compare the solubility of calcium carbonate in each of the following aqueous solutions: Clear All 0.10 M Ca(NO3)2 More soluble than in pure water 0.10 MK2CO3 Similar solubility as in pure water 0.10 M KCH3COO Less soluble than in pure water. 0.10 M NH NO3
Scoring: Your score will be based on the number of correct matches minus the number of incorrect matches. There is no penalty for missing matches. Use the References to access important values if needed for this question. Compare the solubility of calcium phosphate in each of the following aqueous solutions: Clear All 0.10 M Ca(NO3)2 More soluble than in pure water. 0.10 M K3PO4 Similar solubility as in pure water. 0.10 M NaNO3 Less soluble than in pure water. 0.10...
e. 6.2x10 M Which of the following best describes what happens to the solubility of Pbly when it is dissolved in a 0.10 M Nal solution, compared with pure water? For Pblz, Ksp=6.5 x 10 a. Pbly is more soluble in 0.10 M Nal solution than in pure water b. Pbl, is less soluble in 0.10 M Nal solution than in pure water c. the solubility of Pbly is the same in both a 0.10 M Nal solution and in...
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of the solution b. Add a solution of Pb(NO3)2 c. Add a solution of KCI d. Both band e. None of the above the Ky of a compound is constant at constant tempera mperature, 6. In which of the following aqueous solutions would you expect AgBr to have the HIGHES solubility? a. 0.10 M LIBE b. 0.10 M AgNO3 c. 0.20 M NaBr d. 0.15...
answer 1-4
Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The attraction of the water to the ions in NaCl is through dipole-dipole IFs. Water is considered the solute and NaCl the solvent. The partially positive oxygen in water is attracted to the chloride ion. d. The process of separating the sodium ions from the chloride ions is endothermic. All of these statements are true. polar For the following solution, describe the deviation with respect...
Compare the solubility of lead carbonate in each of the following aqueous solutions: Clear All 0.10 M Pb(NO3)2 More soluble than in pure water. 0.10 M (NH4)2CO3 Similar solubility as in pure water. 0.10 M NH NO3 Less soluble than in pure water 0.10 M KCH,COO
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