The values for effective diameters and activity coefficients for ions at 25°C are given in the table below. Activity Coefficient at Indicated Ionic Strength Ion ax, nm 0.001 0.005 0.01 0.05 0.1 Ca2+, Cu2+, Zn2+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate² 0.6 0.870 0.748 0.676 0.48 0.40 Pb2+, CO3², SO3², C₂04² 3+ Al3+, Fe 3+, Cr3+, La³+, Ce³+ ' Th, Zr, Ce+, Sn4+ ' Use the Debye-Hückel equation 0.45 0.868 0.741 0.665 0.45 0.36 0.9 0.737 0.540 0.443 0.24 0.18 1.1 0.587 0.348 0.252 0.10 0.063 0.51Z√ -log Yx 1+3.3ax√ to calculate the activity coefficient of

The values for effective diameters and activity coefficients for ions at 25°C are given in the table below. Activity Coefficient at Indicated Ionic Strength Ion ax, nm 0.001 0.005 0.01 0.05 0.1 Ca2+, Cu2+, Zn2+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate² 0.6 0.870 0.748 0.676 0.48 0.40 Pb2+, CO3², SO3², C₂04² 3+ Al3+, Fe 3+, Cr3+, La³+, Ce³+ ' Th, Zr, Ce+, Sn4+ ' Use the Debye-Hückel equation 0.45 0.868 0.741 0.665 0.45 0.36 0.9 0.737 0.540 0.443 0.24 0.18 1.1 0.587 0.348 0.252 0.10 0.063 0.51Z√ -log Yx 1+3.3ax√ to calculate the activity coefficient of

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

The following cell potentials have been measured for Cu/Cu2+ (1.0, 0.1, 0.01, 0.001, and 0.0001 m) // Zn2+ (1.0 m)/Zn cells. Note: the concentrations are in unit of molality (m). Calculate the ionic strengths of the CuSO4 solutions at 298 K.
A conductivity cell filled with a 0.01 M KCl solution was found to have a resistance of 189 ohms at 25oC. When filled with 0.01 M HCl solution, the cell gave a resistance of 64.8 ohms at the same temperature. At 25oC, the conductivity of 0.01 M KCl solution was 1.4088 x 10-3 S cm-1. Calculate (a) the cell constant and (b) the conductivity of the HCl solution. answer is [0.266; 4.105 x 10-3] please explain. thank you!
The metal cadmium tends to form Cd2+ ions. The followingobservations are made: (i) When a strip of zinc metal is placedin CdCl21aq), cadmium metal is deposited on the strip. (ii)When a strip of cadmium metal is placed in Ni1NO3221aq),nickel metal is deposited on the strip. (a) Write net ionicequations to explain each of the preceding observations.(b) Which elements more closely define the position of cadmiumin the activity series? (c) What experiments wouldyou need to perform to locate more precisely the position ofcadmium in the activity series?
The cell SCE // Ag2CrO4 (sat'd), CrO42- (x M) / Ag is used for the determination of pCrO4. Calculate pCrO4 when the cell potential is 0.336 V.
For Zn|Zn2*(0.25M) || Cu2*(0.25M)|Cu, the cell potential (increases, decreases, is unaffected) when ion concentrations are doubled because
The activity of Zn2+ in a saturated solution with Zn(OH), with 0.0100 M KNO3 (Ksp = 1.20 X10-17, y Zn2* = 0.676 , y OH- = 0.900) is: 2.80X10-6 1.19X10-6 1.99 X10-6 O 4.69X106 O 2.45 X10-6
For the cell Zn(s) | Zn2+(2M) | | Cu2+(0.5 M) | Cu(s)(a) Write equation for each half-reaction.(b) Calculate the cell potential at 25 °C.[Given: EZn2+/Zn= – 0.76 V; ECu2+/Cu= + 0 .34V]
What is the ionic strength of the solution and activity coefficient for both ions in KNO3 if the solution is 10.0 mM?
116.In a conductivity cell of a cell constant 0.003 cm³¹ concentration of 0.01 M solution of acetic acid, the resistance against ionic mobility is 20 ohm at 25 °C. the degree of dissociation of the acid is (where the molar conductance at infinite dilution = 390 x 104 2¹¹ m² mol¹ at 25° C) a) 0.015 b) 0.027 c) 0.038 d) 0.047
pls give detailed soln
calculate activity grams of ferric oxide ions in 1g ferric oxide in 20ml solution.
Calculate the ionic strength of a solution that a. 0.30 M in (NH4)2CrO4. b. 0.030 M in La(NO3)3 and 0.060 M in Fe(NO