Debye and Hückel were able to show that in dilute solutions the activity coefficient i of an ionic species i with a charge number Zi is given by logy-Az211/2 where I is the ionic strength and A is a constant. Show that the for the electrolyte Av+By- log ₁ = Az₁z. 11/2 where = mean ionic activity coefficient of the electrolyte.
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- Calculate the ionic strength of a 0.0019 m aqueous solution of MgCl2 at 298 K. 4.0.0057 X 0.00570 Check the number of significant figures. m Use the Debye-Hückel limiting law to estimate the following. (a) the activity coefficients of the Mg2+ and CI- ions in this solution 4.0 Y+ = .84 V- = 4.0 .92 (b) the mean ionic activity coefficient of these ions 4.0 .89The mean activity coefficient of a 0.010 m H2SO4 solution is 0.544. What is its mean activity?Consider a binary solution for which the vapor pressure (in torr) of one of the components (say component 1) is given empirically by Calculate the activity and the activity coefficient of component 1 when x1 = 0.25 based on (a) a solvent standard state; (b) a solute standard state.
- Estimate the mean ionic activity coefficient and activity of a solution that is 0.015 mol kg-1 MgF2(aq) and 0.025 mol kg-1 NaCI(aq).Calculate the ionic strength of a 0.0019 m aqueous solution of MgCl2 at 298 K. 49.0057 0.00570 Check the number of significant figures. m Use the Debye-Hückel limiting law to estimate the following. (a) the activity coefficients of the Mg2+ and CI- ions in this solution Y+ = 4.0 .98 4.0 .98 (b) the mean ionic activity coefficient of these ions 4.0 10e-.0851The 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 in an 0.050 molKg-1 LaCl3 (aq) solutions is 0.303 at 25 o C. What is the percentage error in the value predicted by the debye – Huckel limiting law?What is the mean ionic activity coefficient for the ions M3+ and X1- of the ionic compound M1X3 if we could somehow magically know that y+ = 0.930 and y- = 0.473? %3D Type your answer...How can I calculate the activity coefficient and the resulting activities of a mixture of 0.001M NaCl with 0.05 NaNO2 using Debye-Hückel approximation? Is the resulting activity coefficient only for one ion species or the whole salt?
- Q2: Consider a binary solution for which the vapor pressure (in torr) of one of the components (say component 1) is given empirically by P₁ = 78.8x₁e (0.65x² +0.18x2) Calculate the activity and the activity coefficient of component 1 when x₁ = 0.25 based on a solvent and a solute standard state.! ( plz ans with explanation clearly )Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in CuSO4(aq).