Is the dissolution of the salt A(OH)2 a reaction that increases the disorder, or decreases the...
Is the dissolution of the salt A(OH)2 a reaction that increases the disorder, or decreases the disorder?
Homework Answers
dissolution of salt A(OH)2 increases the disorder because they dissociate and increases no of particle in the form of ions.So it goes from more arranged (molecular)to less arranged (ionic) form.
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Is the dissolution of the salt A(OH)2 a reaction that increases
the disorder, or decreases the...
a. Write the reaction representing the dissolution of the "insoluble" salt, Ag2 CrO4 in water. b....
a. Write the reaction representing the dissolution of the "insoluble" salt, Ag2 CrO4 in water. b. Write the equilibrium constant expression for this salt. c. Discuss the implications on the solubility of the salt (think about Le Chatelier's principle) when dissolving this salt in an aqueous solution of 0.10 M AgNO3 instead of pure water. d. Write the equilibrium constant expression for this salt dissolved in 0.10 M. AgNO3.
1. Consider the dissolution of an ionic salt in water. Which of the following statements best...
1. Consider the dissolution of an ionic salt in water. Which of the following statements best explains why this process is considered a physical change? (A) The ionic salt can be recovered by evaporation of the water. (B) The ionic salt can be recovered by solidification of the water. (C) Dissolution of an ionic salt is mostly a physical change, and all physical changes are reversible. (D) Dissolution of an ionic salt is mostly a chemical change, and all chemical...
State whether the disorder of each of the following systems increases or decreases in the stated...
State whether the disorder of each of the following systems increases or decreases in the stated process without consulting any tables: i. 6 CO2(g) + 6H2O(l) ---> C6H12O6(aq) + 6O2(g) ii. CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(l) iii. CH3CH2OH(l) ---> Ch3CH2OH(g)
The salt potassium hydroxide dissolves in water according to the reaction: KOH(s) K+(aq) + OH-(aq) (a)...
The salt potassium hydroxide dissolves in water
according to the reaction:
KOH(s) K+(aq)
+ OH-(aq)
(a) Calculate the standard enthalpy change ΔH° for this reaction,
using the following data:
KOH(s) = -424.8 kJ
mol-1
K+(aq)
= -252.4 kJ mol-1
OH-(aq)
= -230.0 kJ mol-1
kJ
(b) Calculate the temperature reached by the solution formed when
8.05 g of KOH is dissolved in
0.162 L of water at 21.8 °C.
Approximate the heat capacity of the solution by the heat capacity...
Post lab for estimating entropy for the dissolution of a salt. I desperately need help with...
Post lab for estimating entropy for the dissolution of a salt. I
desperately need help with 3 and 4 please
Is the dissolution process studied today, NaNo, (s) → Na+ (aq) + NO3-(aq) spontaneous or nonspontaneous? How can you tell? What is the sign of ΔΟ? 1. Using the class's mean value for ΔH and the Gibbs-Helmholtz equation, estimate the value for as for the dissolution process. (See Calculations section.) 2. Based on your observation about the spontaneity o the...
Consider the following reaction mechanism: Step 1 OCI + H2O → HOCI + OH Step 2...
Consider the following reaction mechanism: Step 1 OCI + H2O → HOCI + OH Step 2 T+ HOCl + HỘI + CIT Step 3 HOI + OH O + H2O + b odobro Which of the following is correct for the overall reaction? A. HOI is a product. B. HO is a reactant. C. HOCI is a catalyst. D. OH® is a reaction intermediate. 9. Consider the following: H2(g) +12(g) = 2 HI) Initially, HI is added to an empty...
8. A base A. increases the amount of Ht in solution. 5.decreases the amount of OH...
8. A base A. increases the amount of Ht in solution. 5.decreases the amount of OH in solution. C. increases the amount of OH in solution. D. accepts proton(s) from an acid. E. both C and D 9. When ionic compounds come apart in water, the process is called A. dissociation B. decomposition C. electrolyzation D. neutralization
lab 19, Thermodynamics of the dissolution of borax Lab 19 Thermodynamics of the Dissolution of Borax...
lab 19, Thermodynamics of the dissolution of borax
Lab 19 Thermodynamics of the Dissolution of Borax 2. The molar solubility for Ag.CrO, a salt with solution stoichiometry similar to NaeBO(OH)s 6.54x 10 mol/L a. What is the solubility product for silver sulfate? b. Determine the standard free energy change for the dissolution of Ag SO4 at 25°C. 19-6
likelihood of a behavior being repeated. Increases; increases. Increases; decreases. . Decreases; increases. Decreases; decreases. View...
likelihood of a behavior being repeated. Increases; increases. Increases; decreases. . Decreases; increases. Decreases; decreases. View Feedback Question 32 0/1 point After walking into unpleasantly bright sunlight, you put on a pair of sunglasses, which reduces the brightness. You'll now be likely to put on sunglasses again the next time it's bright out. The behavior of putting on the sunglasses has been conditioned by which of the following? Negative punishment. Positive reinforcement. Negative reinforcement. Positive punishment.
During acidosis CO2 (increases/decreases), while pH (increases decreases) and H+ (increases/decreases)
During acidosis CO2 (increases/decreases), while pH (increases decreases) and H+ (increases/decreases)
a. Write the reaction representing the dissolution of the "insoluble" salt, Ag2 CrO4 in water. b. Write the equilibrium constant expression for this salt. c. Discuss the implications on the solubility of the salt (think about Le Chatelier's principle) when dissolving this salt in an aqueous solution of 0.10 M AgNO3 instead of pure water. d. Write the equilibrium constant expression for this salt dissolved in 0.10 M. AgNO3.
1. Consider the dissolution of an ionic salt in water. Which of the following statements best explains why this process is considered a physical change? (A) The ionic salt can be recovered by evaporation of the water. (B) The ionic salt can be recovered by solidification of the water. (C) Dissolution of an ionic salt is mostly a physical change, and all physical changes are reversible. (D) Dissolution of an ionic salt is mostly a chemical change, and all chemical...
Post lab for estimating entropy for the dissolution of a salt. I
desperately need help with 3 and 4 please
Is the dissolution process studied today, NaNo, (s) → Na+ (aq) + NO3-(aq) spontaneous or nonspontaneous? How can you tell? What is the sign of ΔΟ? 1. Using the class's mean value for ΔH and the Gibbs-Helmholtz equation, estimate the value for as for the dissolution process. (See Calculations section.) 2. Based on your observation about the spontaneity o the...
Consider the following reaction mechanism: Step 1 OCI + H2O → HOCI + OH Step 2 T+ HOCl + HỘI + CIT Step 3 HOI + OH O + H2O + b odobro Which of the following is correct for the overall reaction? A. HOI is a product. B. HO is a reactant. C. HOCI is a catalyst. D. OH® is a reaction intermediate. 9. Consider the following: H2(g) +12(g) = 2 HI) Initially, HI is added to an empty...
8. A base A. increases the amount of Ht in solution. 5.decreases the amount of OH in solution. C. increases the amount of OH in solution. D. accepts proton(s) from an acid. E. both C and D 9. When ionic compounds come apart in water, the process is called A. dissociation B. decomposition C. electrolyzation D. neutralization
lab 19, Thermodynamics of the dissolution of borax
Lab 19 Thermodynamics of the Dissolution of Borax 2. The molar solubility for Ag.CrO, a salt with solution stoichiometry similar to NaeBO(OH)s 6.54x 10 mol/L a. What is the solubility product for silver sulfate? b. Determine the standard free energy change for the dissolution of Ag SO4 at 25°C. 19-6
likelihood of a behavior being repeated. Increases; increases. Increases; decreases. . Decreases; increases. Decreases; decreases. View Feedback Question 32 0/1 point After walking into unpleasantly bright sunlight, you put on a pair of sunglasses, which reduces the brightness. You'll now be likely to put on sunglasses again the next time it's bright out. The behavior of putting on the sunglasses has been conditioned by which of the following? Negative punishment. Positive reinforcement. Negative reinforcement. Positive punishment.
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