Estimate the mean ionic activity coefficient for CaCl2 in a solution that is 0.010 mol kg-1...
Homework Answers
The mean activity coefficient of the solution can be determined using the Debye Huckel limiting law as the concentration of the solution is very low. To calculate the coefficient, it is necessary to determine the ionic strength of the solution.
Then using the mean activity coefficient, we can calculate the mean ionic activity coefficient of Calcium chloride (a uni-bivalent salt) in a solution of Calcium chloride and Sodium Fluoride.
The steps of the calculation can be found in the image.
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Estimate the mean ionic activity coefficient for CaCl2 in a
solution that is 0.010 mol kg-1...
Lfef Vapor-pressure measurements give the mean ionic activity coefficient of CdCl2 in a 0.100 mol/kg aqueous...
Lfef Vapor-pressure measurements give the mean ionic activity coefficient of CdCl2 in a 0.100 mol/kg aqueous Cacl2 solution at 25°C and 1 bar as v. =0.228. Find Eo and E at 25°C and 1 bar for the cell C'S Cals) CdCl2 (@q, Q100 mol/kg) II AgCl(s) I Ag(s) By convention, the left-hand electrode involves oxidation Scanner
Lfef Vapor-pressure measurements give the mean ionic activity coefficient of CdCl2 in a 0.100 mol/kg aqueous Cacl2 solution at 25°C and 1 bar as...
True or fault The mean Ionic activity coefficient of a solution containing 0.05 mol Ca_3(PO_4)_2/kg H_2O...
True or fault
The mean Ionic activity coefficient of a solution containing 0.05 mol Ca_3(PO_4)_2/kg H_2O and 0.05 mol FeCl_2/kg H_2O does not exceed 1.0.
21 Calculate the ionic strength and the mean activity coefficient of 1.00 mmol kg CaCl, (aq)...
21 Calculate the ionic strength and the mean activity coefficient of 1.00 mmol kg CaCl, (aq) at 25°C. Calculate the masses of (a) KNO, and, separately, (b) Ba(NO3), to add to a 0.110 mol kg solution of KNO, (aq) containing 500 g of solvent to sitionic strength to 100. b
Calculate the ionic strength of a solution that is 0.040 mol kg-1 in K3[Fe(CN)6] (aq), 0.030...
Calculate the ionic strength of a solution that is 0.040 mol kg-1 in K3[Fe(CN)6] (aq), 0.030 mol kg-1 in KCl (aq), and 0.050 mol kg-1 in NaBr (aq)
Find the activity coefficient of Ca2+ in a solution of 3.3 mM CaCl2 when the activity...
Find the activity coefficient of Ca2+ in a solution of 3.3 mM CaCl2 when the activity coefficient is 0.675 and the size of the ion is 600 pm
7) Calculate the ionic strength of a solution that is 0.030 mol/kg in Ks[Fe(CN) s], 0.050...
7) Calculate the ionic strength of a solution that is 0.030 mol/kg in Ks[Fe(CN) s], 0.050 mol/kg in KCI, and 0.070 mol/kg in NaBr. (All three salts are in the same solution)
The mean activity coefficient of a 0.2 b Mg(NO3)2 solution is 0.13 at 25oC. Calculate the...
The mean activity coefficient of a 0.2 b Mg(NO3)2 solution is 0.13 at 25oC. Calculate the mean molality, the mean ionic activity and the activity of the compound.
Calculate the activity coefficient, y, of Snt when the ionic strength of the solution, , is...
Calculate the activity coefficient, y, of Snt when the ionic strength of the solution, , is 0.062 M by linear interpolation of the data in the table. Ionic strength (H, M) 0.001 Activity coefficient (75m?) 0.870 0.005 0.43 0.749 YSa+= 0.01 0.05 10.1 0.675 0.485 0.405 Calculate the activity coefficient, y of Snt when the ionic strength of the solution, , is 0.062 M by using the extended Debye-Hückel equation at 25 °C, where the ion size is 600 pm....
Please answer all questions 2. a) Briefly explain the concepts on which the Debye-Huckel's theory for ionic solutio...
Please answer all questions
2. a) Briefly explain the concepts on which the Debye-Huckel's theory for ionic solutions is based. (7 Marks). b) Briefly explain the relationship between the activity coefficient and the ionic strength of an electrolyte as seen in the context of the Deybe-Huckel limiting law. (5 Marks) ffers from the limiting law. (6 Marks) d) Calculate activity a 0.250 mol kg CaCl2 solution at 35 degree C. (Let A-0.509,7 Marks)
2. a) Briefly explain the concepts on...
Calculate the activity coefficient, ?, of Cu2 when the ionic strength of the solution, ? ,...
Calculate the activity coefficient, ?, of Cu2 when the ionic
strength of the solution, ? , is 0.078 M:
(a) by linear interpolation of the data in the table to the
right;
yCu2+ = 0.440
(b) by using the extended Debye-Huckel equation at 25°C, where
the ion size is 600 pm.
yCu2+ =
answer to part a is correct.
ionic strength (,M)
activity coeffient
Cu2+
0.001
0.870
0.005
0.749
0.01
0.675
0.05
0.485
0.1
0.405
Lfef Vapor-pressure measurements give the mean ionic activity coefficient of CdCl2 in a 0.100 mol/kg aqueous Cacl2 solution at 25°C and 1 bar as v. =0.228. Find Eo and E at 25°C and 1 bar for the cell C'S Cals) CdCl2 (@q, Q100 mol/kg) II AgCl(s) I Ag(s) By convention, the left-hand electrode involves oxidation Scanner
Lfef Vapor-pressure measurements give the mean ionic activity coefficient of CdCl2 in a 0.100 mol/kg aqueous Cacl2 solution at 25°C and 1 bar as...
True or fault
The mean Ionic activity coefficient of a solution containing 0.05 mol Ca_3(PO_4)_2/kg H_2O and 0.05 mol FeCl_2/kg H_2O does not exceed 1.0.
21 Calculate the ionic strength and the mean activity coefficient of 1.00 mmol kg CaCl, (aq) at 25°C. Calculate the masses of (a) KNO, and, separately, (b) Ba(NO3), to add to a 0.110 mol kg solution of KNO, (aq) containing 500 g of solvent to sitionic strength to 100. b
7) Calculate the ionic strength of a solution that is 0.030 mol/kg in Ks[Fe(CN) s], 0.050 mol/kg in KCI, and 0.070 mol/kg in NaBr. (All three salts are in the same solution)
Calculate the activity coefficient, y, of Snt when the ionic strength of the solution, , is 0.062 M by linear interpolation of the data in the table. Ionic strength (H, M) 0.001 Activity coefficient (75m?) 0.870 0.005 0.43 0.749 YSa+= 0.01 0.05 10.1 0.675 0.485 0.405 Calculate the activity coefficient, y of Snt when the ionic strength of the solution, , is 0.062 M by using the extended Debye-Hückel equation at 25 °C, where the ion size is 600 pm....
Please answer all questions
2. a) Briefly explain the concepts on which the Debye-Huckel's theory for ionic solutions is based. (7 Marks). b) Briefly explain the relationship between the activity coefficient and the ionic strength of an electrolyte as seen in the context of the Deybe-Huckel limiting law. (5 Marks) ffers from the limiting law. (6 Marks) d) Calculate activity a 0.250 mol kg CaCl2 solution at 35 degree C. (Let A-0.509,7 Marks)
2. a) Briefly explain the concepts on...
Calculate the activity coefficient, ?, of Cu2 when the ionic
strength of the solution, ? , is 0.078 M:
(a) by linear interpolation of the data in the table to the
right;
yCu2+ = 0.440
(b) by using the extended Debye-Huckel equation at 25°C, where
the ion size is 600 pm.
yCu2+ =
answer to part a is correct.
ionic strength (,M)
activity coeffient
Cu2+
0.001
0.870
0.005
0.749
0.01
0.675
0.05
0.485
0.1
0.405
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