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.
The mean activity coefficient of a 0.2 b Mg(NO3)2 solution is 0.13 at 25oC. Calculate the...
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
Use the Debye-Huckel limiting law to determine the mean activity coefficient for the Ca2+ and NO3- ions in a 0.005 mol dm-3 aqueous solution of calcium nitrate, Ca(NO3)2.
Use the Debye–Hückel limiting law to determine the mean activity coefficient for the Ca2+ and NO3- ions in a 0.005 mol dm-3 aqueous solution of calcium nitrate, Ca(NO3)2.
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....
the mean activity Le mtality of Alr(5Oa)s and wwite the relations for the mean activity and ENERGY MINIMUM 21 Condition of (6.3) occurs when μ"-Ha (Fig. 6.1). It follows that, if we can find the ndition of the reaction mixture that ensures Hn -M, then we can idem now fule- anp 4a) mean molality of Alb(SO4)s and write the relations for the mean activity and the mean activity coefficient. ution of aluminium sulfate of the molality 0.2 molkg. Calculate the...
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 Ion size (a, nm) Ion Pb2+ 0.450 Mg 0.800 Mg in a solution where u0.0693 M Zn2+ 0.600 Cro Cr 0.400 14 0.900 PO 0.400 1.100 p0460 Z in a solution where Ce4 1.100 TzA
Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution...
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
Estimate the mean ionic activity coefficient for CaCl2 in a solution that is 0.010 mol kg-1 CaCl2(aq) and 0.030 mol kg-1 NaF(aq).
4. Calculate the overall mean activity coefficient for the solution prepared by mixing 0.020 m MgSO4 with 0.050 m Na3PO4.