N Awasthi Physical Chemistry
Assertion : Addition of HCl(aq) to HCOOH(aq) decreases the dissociation of HCOOH(aq) Reason : Due to common ion effect of H+, dissociation of HCOOH decreased.
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Nov
Assertion : Addition of HCl(aq) to HCOOH(aq) decreases the dissociation of HCOOH(aq) Reason : Due to common ion effect of H+, dissociation of HCOOH decreased. Assertion : Addition of HCl(aq) to HCOOH(aq) decreases the dissociation of HCOOH(aq) Reason : Due to common ion effect of H+ dissociation of HCOOH decreased. November 22, 2020 Category: Chapter [...]
Assertion All strong monoprotic acid with same concentration in dilute solution show same pH Reason Water shows leveling effect
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Nov
Assertion All strong monoprotic acid with same concentration in dilute solution show same pH Reason Water shows leveling effect Assertion All strong monoprotic acid with same concentration in dilute solution show same pH Reason Water shows leveling effect November 22, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 [...]
Statement 1 : if water is heated to 50 degree c then pH will increase. Statement 2 : Kw increases with increase in temperature.
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Nov
Statement 1 : if water is heated to 50 degree c then pH will increase. Statement 2 : Kw increases with increase in temperature. Statement 1 : if water is heated to 50 degree c then pH will increase. Statement 2 : Kw increases with increase in temperature. November 22, 2020 Category: Chapter 6 - [...]
The salt Al(OH)3 involved in the following two equilibria. Al(OH)3(s)⇔Al3+(aq)+3OH−(aq),Ksp Al(OH)3(s)+OH−(aq)⇔Al(OH)−4(aq),Kc Which of the following relationship is CORRECT at which solubility is minimum?
22
Nov
The salt Al(OH)3 involved in the following two equilibria. Al(OH)3(s)⇔Al3+(aq)+3OH−(aq),Ksp Al(OH)3(s)+OH−(aq)⇔Al(OH)−4(aq),Kc Which of the following relationship is CORRECT at which solubility is minimum? Kc Which of the following relationship is CORRECT at which solubility is minimum? Ksp Al(OH)3(s)+OH−(aq)⇔Al(OH)−4(aq) The salt Al(OH)3 involved in the following two equilibria. Al(OH)3(s)⇔Al3+(aq)+3OH−(aq) November 22, 2020 Category: Chapter 6 - [...]
What is [Ag+] in a solution made by dissolving both Ag2CrO4 and Ag2C2O4 until saturation is reached with respect to both salt ? [Ksp=(Ag2C2O4) = 2 × 10^−11, Ksp(Ag2CrO4) = 2 × 10^−12]
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Nov
What is [Ag+] in a solution made by dissolving both Ag2CrO4 and Ag2C2O4 until saturation is reached with respect to both salt ? [Ksp=(Ag2C2O4) = 2 × 10^−11, Ksp(Ag2CrO4) = 2 × 10^−12] Ksp(Ag2CrO4) = 2 × 10^−12] What is [Ag+] in a solution made by dissolving both Ag2CrO4 and Ag2C2O4 until saturation is reached [...]
What is maximum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M ZnCl2 and saturated with 0.10M H2S? [Given : Ksp(ZnS)=10^−21, Ka1×Ka2 (of H2S)=10^−20]
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Nov
What is maximum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M ZnCl2 and saturated with 0.10M H2S? [Given : Ksp(ZnS)=10^−21, Ka1×Ka2 (of H2S)=10^−20] Ka1×Ka2 (of H2S)=10^−20] What is maximum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M ZnCl2 and saturated with [...]
AgBr(s)+2S2O2−3(aq)⇔[Ag(S2O3)2]3−(aq)+Br−(aq) [Ksp(AgBr)=5×10^−13, Kf[Ag(S2O3)2]3−=5×10^13] What is the molar solubility of AgBr in 0.1M Na2S2O3?
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Nov
AgBr(s)+2S2O2−3(aq)⇔[Ag(S2O3)2]3−(aq)+Br−(aq) [Ksp(AgBr)=5×10^−13, Kf[Ag(S2O3)2]3−=5×10^13] What is the molar solubility of AgBr in 0.1M Na2S2O3? AgBr(s)+2S2O2−3(aq)⇔[Ag(S2O3)2]3−(aq)+Br−(aq) [Ksp(AgBr)=5×10^−13 Kf[Ag(S2O3)2]3−=5×10^13] What is the molar solubility of AgBr in 0.1M Na2S2O3? November 22, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
There exist an equilibrium between solid SrSO 4 and Sr2+ and SO 4 2− ion in aqueous medium. The possible equilibrium states are shown in the figure as thick line. Now of the equilibrium is distributed by addition of (a) Sr(NO3 )2 and (b) K2SO4 and dotted line represent approach of system towards equilibrium. Match the columns given below
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Nov
There exist an equilibrium between solid SrSO 4 and Sr2+ and SO 4 2− ion in aqueous medium. The possible equilibrium states are shown in the figure as thick line. Now of the equilibrium is distributed by addition of (a) Sr(NO3 )2 and (b) K2SO4 and dotted line represent approach of system towards equilibrium. Match [...]
The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7)
22
Nov
The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7) The simultaneous solubility of AgCN (Ksp = 2.5×10^−16) and AgCl(Ksp=1.6×10^−10) in 1.0 M NH3(aq) are respectively (Kf [Ag(NH3)2]+=10^7) November 22, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium [...]
A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution, what will be the concentration of Cl− when Ag2CrO4 begins to precipitate? (Ksp(AgCl)=10^−10M^2, Ksp(Ag2CrO4)=10^−12M^3)
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Nov
A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution, what will be the concentration of Cl− when Ag2CrO4 begins to precipitate? (Ksp(AgCl)=10^−10M^2, Ksp(Ag2CrO4)=10^−12M^3) A solution contains 0.1M is Cl− and 10^−4 M CrO2−4. If solid AgNO3 is gradually added to this solution Ksp(Ag2CrO4)=10^−12M^3) what will [...]