a)
We have Debye Huckel equation : log = ( - 0.51 z 2) / ( 1 + ( / 305)
Where is activity coefficient, z is charge on ion, is ion size and is ionic strength.
For Zn 2+, z = +2 , = 600 pm and = 0.083 M
log = ( - 0.51 (+2) 20.083 ) / ( 1 + (600 0.083 / 305 )
log = ( - 0.5877 ) / ( 1 + 0.567)
log = ( - 0.5877 ) / 1.567 = - 0.3750
= 10 - 0.3750 = 0.4216 = 0.422
ANSWER : Zn 2+ = 0.422
b)
Zn 2+ | |
0.1 M | 0.405 |
0.05 M | 0.485 |
When = ( 0.10 M - 0.05 M ) = 0.05 M , Zn 2+ = 0.485 - 0.405 = 0.08
At an ionic strength of 0.083 M , we get
= ( 0.100 M - 0.083 M ) = 0.017 M
Zn 2+ = (0.017 / 0.05 ) 0.08 = 0.0272
Therefore, Zn 2+ = 0.405 + 0.0272 = 0.432
ANSWER : Zn 2+ = 0.432
when u 7-6.Calculate the activity coefficient of Zn2 when p using (a) Equation 7-6; (b) linear...
Question 6 of 11 Calculate the activity coefficient, y, of Ca2 when the ionic Y. Ionic Activity strength of the solution, , is 0.083 M by linear interpolation of the data in the table. strength (и, М) coefficient (YCa) 0.001 0.870 0.005 0.749 YCa+ 0.01 0.675 0.05 0.485 Calculate the activity coefficient, y, of Ca2+ when the ionic strength of the solution, u, is 0.083 M by using the extended Debye-Hückel equation at 25 °C, where the ion size is...
1- Calculate activity coefficient of Mg2+ in a 0.0100 M MgCl2 solution. a - By linear interpolation data in table 7-1 b - By using extended Debye-Huckel equation
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....
Activity Calculate the activity coefficient, y, of Fe2+ when the ionic strength of the solution, μ , is 0.074 M lonic Strength Coefficient 2+ (a) by linear interpolation of the data in the table to the right; 0.001 0.005 0.01 0.05 0.1 0.870 0.749 0.675 0.485 0.405 Number Fe (b) by using the extended Debye-Huckel equation at 25°C, where the ion size is 600 pm Number Fe
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
Question 25 of 32 > Ion Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25 °C. Croz - in a solution where u = 0.0816 M. Pb2+ Mg2+ Zn2+ | Cro²- Cr3+ PO- Zr4+ Ce+ Ion size (a, nm) 0.450 0.800 0.600 0.400 0.900 0.400 1.100 1.100 Ycro - = Zr4+ in a solution where p = 0.0482 M about us Careers privacy policy terms of...
Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25°C. Mg2+ in a solution where p = 0.0686 M Ion Pb2+ Mg2+ Zn2+ Cro Cr+ Ion size (c, nm) 0.450 0.800 0.600 0.400 0.900 0.400 Mg²+ = 1.100 PO - in a solution where u = 0.0293 M Ce+ 1.100 Ypo - =
Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25 °C. Zn2+ in a solution where u = 0.0214 M Ion Pb2+ Mg2+ Zn2+ Ion size (a, nm) 0.450 0.800 0.600 | Cro²- Cr3+ PO3- YZn2+ = 0.400 0.900 0.400 1.100 Zr4+ in a solution where u = 0.0772 M Zr4+ Ce4+ 1.100 YZ 4+ =
Question 11 of 11 > Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an Ion size (a, nm) Ion РЬ2+ 0.450 aqueous solution at 25 °C. Mg2 0.800 Pb2+ in a solution where u = 0.0244 M Zn2+ 0.600 СЮ 0.400 Cr+ 0.900 Yрь РО Z+ 0.400 1.100 Crit in a solution where u = 0.0400 M Ce4+ 1.100 YCr= about us privacy policy careers terms of use contact us...
Resources Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25 °C Zn2+ in a solution where μ-0.0234 M Ion Ion size (a, nm) Pb20.450 Mg2+0.800 Zn+ 0.600 Cro0400 0.900 0400 1.100 Cr3+ Cr?+ in a solution where 0.0850 M 1.100 QCA9e_ch06 TB...docx QCA9e cho7 TB...docx Resources Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous...