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The mobility of a chloride ion in aqueous solution at 25 °C is 7.91 x 10-8 m2 s-1 V-1. Calculate its molar ionic conductivity.
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- The mobility of a chloride ion in aqueous solution at 25 °C is 7.91 × 10−8 m2 s−1 V−1. Calculate the molar ionic conductivity.The mobility of an ethanoate (acetate) ion in aqueous solution at 25 °C is 4.24 × 10−8 m2 s−1 V−1. Calculate the molar ionic conductivity.The mobility of a Li+ ion in aqueous solution is 4.01 × 10−8 m2 s−1 V−1 at 25 °C. The potential difference between two electrodes separated by 5.00 mm and placed in the solution, is 24.0 V. What is the drift speed of the ion?
- The mobility of a Rb+ ion in aqueous solution is 7.92 x 10-8 m2 s-1 V-1 at 25 °C. The potential difference between two electrodes placed in the solution is 35.0 V. If the electrodes are 8.00 mm apart, what is the drift speed of the Rb+ ion?The Gibbs energy of transition from metallic white tin (a-Sn) to nonmetallic grey tin (ß-Sn) is +0.13 kJ mol−¹ at 298 K. Which is the reference state of tin at this temperature?What partial pressure of hydrogen results in a molar concentration of 1.0 mmol dm-3 in water at 25 °c?
- The mobility of a Rb+ ion in aqueous solution is 7.92 × 10−8 m2 s−1 V−1 at 25 °C. The potential difference between two electrodes, separated by 7.00 mm and placed in the solution, is 25.0 V. What is the drift speed of the Rb+ ion?The decomposition of a generic diatomic element in its standard state is represented by the equation X₂(g) → X(g) Assume that the standard molar Gibbs energy of formation of X(g) is 4.71 kJ - mol-¹ at 2000. K and −55.51 kJ · mol-¹ at 3000. K. Determine the value of the thermodynamic equilibrium constant, K, at each temperature. At 2000. K, AG₁ = 4.71 kJ · mol-¹. What is K at that temperature? K at 2000. K= At 3000. K, AGf = −55.51 kJ - mol-¹. What is K at that temperature? K at 3000. K =6. When the ideal-gas reaction A+B=C+Dhas reached equilibrium, state whether or not each of the following relations must be true. Here n¡ is the number of moles of species i in equilibrium, P, is the partial pressure of i, and µ; is the chemical potential of i. Here a simple True or False answer is sufficient. (a) nc+np=nA +ng (b) Pc+Pp=PA+PB (c) na=ng (d) nc=na (e) If only A and B are present initially, then nc=np (f) Ha + HB= Hc+ Hp no matter what the initial composition. (g) If only A and B are present initially, then in equilibrium we must have nc # 0. (h) The equilibrium constant Kp(T)= PĄPB/(PcPp). (i) The value of –RT In Kp(T) = µE(T)+µ8(T)– H3(T) –- H§(T). ) The equilibrium constant is independent of the total pressure.
- Calculate the pH of a 0.035 mol dm–3 solution of ethanoic acid (assume that the degree of dissociation is very small). Give your final answer to three significant figures.The molar conductivity of 0.010 M CH3COOH(aq) is 1.65 mS m2 mol-1. What is the acidity constant, Ka, of the acid?The pH of an aqueous solution of 0.061 M ascorbic acid, H2CGH606 (aq), is