0.025 M CH3COOH solution has a specific conductance of 2.33X10-4 Scm-1 , and molar conductivity at infinite dilution is 364.13 S.Cm2 .mol-1 . What is its degree of dissociation?
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) 0.025 M CH3COOH solution has a specific conductance of 2.33X10-4 Scm-1
,
and molar conductivity at infinite dilution is 364.13 S.Cm2
.mol-1
. What is its
degree of dissociation?
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- 9. The molar conductivity values at infinite dilution, in units of Sm?mol1, of NHẠCI, NaCl and N2OH are 1.497 x 10², 1.2645 x 10² and 2.478 x 10², respectively. (a) Calculate the molar conductivity at infinite dilution of NH4OH. (b) The molar conductivity of 0.0100 moldm3 NH,OH is 1.13 x 103 Sm?mol. What is the degree of dissociation and the dissociation constant, Kp, of 0.0100 moldm3 NHẠOH?1- Calculate I (ionic strength) for a solution that is 0.5 molal in KCI and 0.2 molal in K₂Cr₂O7. 2- 1-When A = 1.05 × 10³ m², C(HCI) = 10.0 mol m³, 1=0.01 A for 200 s, x was measured to be 0.17 m. Calculate t (H¹) 3- Calculate the molar conductivities (A) of KCI solution (0.1 mol L¹), if the conductivity of this solution at 25°C is 0.012896 ¹cm¹. 4- Calculate the Molar conductivity of H (..).The lonic Mobilities of H* ions (u) is -36.23 x10*¹ cm² V¹s¹Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCI NaCl and CH3COONA are 369.3, 101.7 and 1.7 S cm2eq-1 respectively. If equivalent conductivity of centinormal solution of acetic acid is 14.3 S cmzeq 1, [H+] in solution of acetic acid is Xx10 . Calculate of Value of X?
- The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2mol-1. Calculate the conductivity of the solution.The Conductivity of 0.20 M solution of KCl at 298 K is 0.0248 Scm³. Calculate its molar conductivityb) In one conductivity cell, the resistance of a 0.1 M KCl solution is 1.5x102 Ω. The knownmolar conductivity of the solution is 101 Ω-1 cm2 mol-1 . Calculate the cell constant, Kcell. (Kcell unit is cm-1).
- 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?Determine the activity coefficients and effective concentrations (activities) of Na+ and Ca2+ ions in an aqueous solution having the following composition: [Ca2+] = 3.25x 10-3 M; [Na+] = 0.96x 10-3 M; [HCO3-] = 5.75x 10-3 M; [SO42-] = 0.89x 10-3 M. (Note: Solvated ionic radii are: a(HCO3-) = a(SO42-) = 4 Å; a(Ca+) = 6 Å)Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCl „NaCl and CH3COONA are 369.3, 101.7 and 1.7 S cm2eq-1 respectively. If equivalent conductivity of centinormal solution of acetic acid is 14.3 S cm2eq-1, [H+]in solution of acetic acid is Xx104. Calculate of Value of X?
- The molar conductivity of a saturated solution of thallium (1) bromide at 20°C is 2.158 x 102 Som¹ and that of pure water is 4.44 x 105 S m¹. The molar conductivity at infinite dilution is 138 S cm² mole-¹. Calculate the solubility of thallium (1) bromide in grams per liter.Calculate the normality of 0.2M Na2CO3 (M.wt = 106).1.5m 6A 200. mL solution that is 6.7 x 104 M in Cu²+ is mixed with 0.30 mole NH3. There is no change in volume as NH3 is bubbled in. What is the final [Cu]? Kf Cu(NH3)42 = 5.6 x 10¹¹ 124 . Kover= ksp kf 5." -9 Cu2++NH₂ CU(NH3) 4² 2+