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If the enthalpy of solution in water is exothermic which of the following MUST be true:...
In the preparation of an NaOH solution, which is an exothermic process, how can the solubility...
In the preparation of an NaOH solution, which is an exothermic process, how can the solubility of NaOH in water be increased? A. cool the reaction container B. add more solute C. add more solvent D. add more heat
Week 2D KBr is relatively soluble in water, yet its enthalpy of solution is +19.8 kJ/mol....
Week 2D KBr is relatively soluble in water, yet its enthalpy of solution is +19.8 kJ/mol. Which of the following statements provides the best explanation for this behavior? a. K salts are always soluble in water b. The entropy of mixing must be unfavorable C. The enthalpy of mixing must be small compared to the enthalpies for breaking up water-water interactions and K-Brionic interactions. d. KBr has a high molar mass compared to Naci. 2. If the partial pressure of...
Which of the following must be COMPLETELY broken in the course of the solution forming process?...
Which of the following must be COMPLETELY broken in the course of the solution forming process? The saturation barrier Solute-solvent interactions Solvent-solvent interactions Solute-solute interactions Which of the following can form hydrogen bonding interactions? ОСН, ОН OSO OCH,CH,CH.CH OPCI, OF, Which of the following statements about the rate law of reaction is true? The rate law must be determined experimentally. The rate law cannot be determined experimentally The rate law is just a restatement of the first law of thermodynamics...
34. The phase changes B-C and D - E are not associated with temperature increases because...
34. The phase changes B-C and D - E are not associated with temperature increases because the heat energy (q) is consumed to A) increase distances between molecules B) break intramolecular bonds C) rearrange atoms within molecules D) increase the density of the sample gas liquid and gas TOC solid and liquid liquid B solid Heat added (1) 35. Which of these is a weak base? A) NaOH B) HCI E) CH3CH2OH C) Naci D) NH 36. When discussing energy...
Hello, I need help solving the 3 parts of this question. Part - Factors affecting the...
Hello, I need help solving the 3 parts of this question.
Part - Factors affecting the dissolution process The rate at which a solute dissolves in a solvent depends on the kinetic energy of the soluton, theme of contact and the surface area of contact between the solute and the solvent particles. Both endothermic and exothermic dissolution processes will respond similarly to each factor, however the charge may be more pronounced depending on the thermodynamic penters of the reaction. As...
Which of the following statements regarding the solution process is incorrect? Multiple Choice When a solution...
Which of the following statements regarding the solution process is incorrect? Multiple Choice When a solution is formed from an ionic compound, the anions and cations are evenly distributed throughout the solution When a polar covalent compound dissolves in water, dipole-dipole interactions take place between the water molecules and the solute molecules. A nonpolar compound such as hexane, C6H14, forms London dispersion forces with a nonpolar solute, such as 12 during the solution process. O The solution process is always...
33. The following scheme depicts what type of chemical reaction? Page 5 H Η Ο Iran...
33. The following scheme depicts what type of chemical reaction? Page 5 H Η Ο Iran no ranom.don -- [ H-NCH27, N-H + 1 HOCCH27; COH Diamine Adipic acid tN(CH)N-C(CH2),C7,+ 2n H,O Nylon 6,6 A) Addition polymerization C) Condensation polymerization E) Elastomeric polymerization B) Acid-base reaction D) Ionic polymerization 34. The phase changes BC and D E are not associated with temperature increases because the heat energy (q) is consumed to A) increase distances between molecules B) break intramolecular bonds...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr to be most soluble? a) CH4 (hexane) d) CCM (carbon tetrachloride) b) CH CH OH (ethanol) e) C.Hz (cyclohexane) c) CH. (benzene) ___6. A 9.50 % by mass solution of acetone (C,H,O) in water has a density of 0.9849 g/mL at 20°C. What is the molarity of this solution? a) 0.621 M b) 1.61 Me) 1.66 Md ) 1.71 M e ) 16.9 M...
WRITING MUST BE CLEAR!! 1. Use the following data to calculate the heat of solution for...
WRITING MUST BE CLEAR!!
1. Use the following data to calculate the heat of solution for rubidium iodide in kJ/mol. 9.853 g of RbI was added to a coffee cup calorimeter containing 65.0 mL of water measured at 20.25 ℃. temperature attained after completely dissolving the Rb1 was 17.21 ℃ The lowest Specific heat of water = 4.184 J/g.C: Density of water 0.998 17 g/mL at 20.25℃ Also, is this heat of solution endothermic or exothermic? Heat of Solution Endo-...
Which of the following statements is true You can select multiple answers if you think so)...
Which of the following statements is true You can select multiple answers if you think so) Yanitiniz: In a salt water example, water is the solvent and salt is the solute If you wish to find the concentration of a base solution, you would titrate the base solution with a solution of an acid (titrant). You have to know the concentration of the titrant. Following reaction is an exothermic reaction: 6CO/D + H,01h+ energy-> CHOdaq +60/6) Pycnometer bottle has a...
Week 2D KBr is relatively soluble in water, yet its enthalpy of solution is +19.8 kJ/mol. Which of the following statements provides the best explanation for this behavior? a. K salts are always soluble in water b. The entropy of mixing must be unfavorable C. The enthalpy of mixing must be small compared to the enthalpies for breaking up water-water interactions and K-Brionic interactions. d. KBr has a high molar mass compared to Naci. 2. If the partial pressure of...
Which of the following must be COMPLETELY broken in the course of the solution forming process? The saturation barrier Solute-solvent interactions Solvent-solvent interactions Solute-solute interactions Which of the following can form hydrogen bonding interactions? ОСН, ОН OSO OCH,CH,CH.CH OPCI, OF, Which of the following statements about the rate law of reaction is true? The rate law must be determined experimentally. The rate law cannot be determined experimentally The rate law is just a restatement of the first law of thermodynamics...
34. The phase changes B-C and D - E are not associated with temperature increases because the heat energy (q) is consumed to A) increase distances between molecules B) break intramolecular bonds C) rearrange atoms within molecules D) increase the density of the sample gas liquid and gas TOC solid and liquid liquid B solid Heat added (1) 35. Which of these is a weak base? A) NaOH B) HCI E) CH3CH2OH C) Naci D) NH 36. When discussing energy...
Hello, I need help solving the 3 parts of this question.
Part - Factors affecting the dissolution process The rate at which a solute dissolves in a solvent depends on the kinetic energy of the soluton, theme of contact and the surface area of contact between the solute and the solvent particles. Both endothermic and exothermic dissolution processes will respond similarly to each factor, however the charge may be more pronounced depending on the thermodynamic penters of the reaction. As...
Which of the following statements regarding the solution process is incorrect? Multiple Choice When a solution is formed from an ionic compound, the anions and cations are evenly distributed throughout the solution When a polar covalent compound dissolves in water, dipole-dipole interactions take place between the water molecules and the solute molecules. A nonpolar compound such as hexane, C6H14, forms London dispersion forces with a nonpolar solute, such as 12 during the solution process. O The solution process is always...
33. The following scheme depicts what type of chemical reaction? Page 5 H Η Ο Iran no ranom.don -- [ H-NCH27, N-H + 1 HOCCH27; COH Diamine Adipic acid tN(CH)N-C(CH2),C7,+ 2n H,O Nylon 6,6 A) Addition polymerization C) Condensation polymerization E) Elastomeric polymerization B) Acid-base reaction D) Ionic polymerization 34. The phase changes BC and D E are not associated with temperature increases because the heat energy (q) is consumed to A) increase distances between molecules B) break intramolecular bonds...
massa volum volum mo olu 5. In which of the following solvents would you expect KBr to be most soluble? a) CH4 (hexane) d) CCM (carbon tetrachloride) b) CH CH OH (ethanol) e) C.Hz (cyclohexane) c) CH. (benzene) ___6. A 9.50 % by mass solution of acetone (C,H,O) in water has a density of 0.9849 g/mL at 20°C. What is the molarity of this solution? a) 0.621 M b) 1.61 Me) 1.66 Md ) 1.71 M e ) 16.9 M...
WRITING MUST BE CLEAR!!
1. Use the following data to calculate the heat of solution for rubidium iodide in kJ/mol. 9.853 g of RbI was added to a coffee cup calorimeter containing 65.0 mL of water measured at 20.25 ℃. temperature attained after completely dissolving the Rb1 was 17.21 ℃ The lowest Specific heat of water = 4.184 J/g.C: Density of water 0.998 17 g/mL at 20.25℃ Also, is this heat of solution endothermic or exothermic? Heat of Solution Endo-...
Which of the following statements is true You can select multiple answers if you think so) Yanitiniz: In a salt water example, water is the solvent and salt is the solute If you wish to find the concentration of a base solution, you would titrate the base solution with a solution of an acid (titrant). You have to know the concentration of the titrant. Following reaction is an exothermic reaction: 6CO/D + H,01h+ energy-> CHOdaq +60/6) Pycnometer bottle has a...
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