NCERT Exemplar Class 11
The first ionization constant of H2S is 9.1×10 −8. Calculate the concentration of HS − ion in its 0.1 M solution. How will this concentration be affected if the solution is 0.1M in HCl also? If the second dissociation constant of H 2 S is 1.2×10 −13, calculate the concentration of S.2−under both conditions.
24
Nov
The first ionization constant of H2S is 9.1×10 −8. Calculate the concentration of HS − ion in its 0.1 M solution. How will this concentration be affected if the solution is 0.1M in HCl also? If the second dissociation constant of H 2 S is 1.2×10 −13, calculate the concentration of S.2−under both conditions. The [...]
The ionization constant of phenol is 1.0×10 −10. What is the concentration of phenolate ion in 0.05 M solution of phenol? What will be its degree of ionization if the solution is also 0.01 M in sodium phenolate?
24
Nov
The ionization constant of phenol is 1.0×10 −10. What is the concentration of phenolate ion in 0.05 M solution of phenol? What will be its degree of ionization if the solution is also 0.01 M in sodium phenolate? The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. [...]
The ionization constant of HF,HCOOH and HCN at 298K are 6.8×10 −4,1.8×10 −4and 4.8×10 −9 respectively. Calculate the ioniation constants of the corresponding conjugate base.
24
Nov
The ionization constant of HF,HCOOH and HCN at 298K are 6.8×10 −4,1.8×10 −4and 4.8×10 −9 respectively. Calculate the ioniation constants of the corresponding conjugate base. 1.8×10 −4and 4.8×10 −9 respectively. Calculate the ioniation constants of the corresponding conjugate base. HCOOH and HCN at 298K are 6.8×10 −4 The ionization constant of HF November 24, 2020 [...]
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
24
Nov
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. November 24, 2020 Category: Chapter 7 - Equilibrium , Chemistry , NCERT Exemplar Class 11 ,
What is meant by the conjugate acid-base pair? Find the co[vimeo 479428195 w=640 h=360]njugate acid/base for the following species. HNO2,CN^− ,HClO4 F^− ,OH^− ,CO3 2−and S^2−-duplicate-2
24
Nov
What is meant by the conjugate acid-base pair? Find the co[vimeo 479428195 w=640 h=360]njugate acid/base for the following species. HNO2,CN^− ,HClO4 F^− ,OH^− ,CO3 2−and S^2−-duplicate-2 The concentration of hydrogen ion in a sample of soft drink is 3.8×10 −3 M. What is its pH value? November 24, 2020 Category: Chapter 7 - Equilibrium , [...]
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) OH (b) F −c) H + (d) BCl 3
24
Nov
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) OH (b) F −c) H + (d) BCl 3 Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) OH (b) F −c) H + (d) BCl [...]
The species H2O, HCO3^-, HSO4^- NH3 can act both as bronsted acids and bases. For each case give corresponding conjugate acid and bases 2
24
Nov
The species H2O, HCO3^-, HSO4^- NH3 can act both as bronsted acids and bases. For each case give corresponding conjugate acid and bases 2 HCO3^- HSO4^- NH3 can act both as bronsted acids and bases. For each case give corresponding conjugate acid and bases 2 The species H2O November 24, 2020 Category: Chapter 7 - [...]
Write the conjugate acids for the following Bronsted bases NH 2 −,NH 3 and HCOO −
24
Nov
Write the conjugate acids for the following Bronsted bases NH 2 −,NH 3 and HCOO − NH 3 and HCOO − Write the conjugate acids for the following Bronsted bases NH 2 − November 24, 2020 Category: Chapter 7 - Equilibrium , Chemistry , NCERT Exemplar Class 11 ,
What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species. HNO2,CN^− ,HClO4 F^− ,OH^− ,CO3 2−and S^2−
22
Nov
What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species. HNO2,CN^− ,HClO4 F^− ,OH^− ,CO3 2−and S^2− CN^− CO3 2−and S^2− HClO4 F^− OH^− What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species. HNO2 November 22, 2020 Category: Chapter 7 - Equilibrium [...]
The reaction COg + 3H2g ↔ CH4g + H2O g is at equilibrium at 1300 K in a 1L flask. It also contain 0.30 mol of CO 0.10 mol of H2 and 0.02 mol of H2O and an unknown amount of CH4 in the flask. Determine the concentration of CH4 in the mixture. The equilibrium constant Kc for the reaction at the given temperature is 3.90.
22
Nov
The reaction COg + 3H2g ↔ CH4g + H2O g is at equilibrium at 1300 K in a 1L flask. It also contain 0.30 mol of CO 0.10 mol of H2 and 0.02 mol of H2O and an unknown amount of CH4 in the flask. Determine the concentration of CH4 in the mixture. The equilibrium [...]