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- 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 limiting molar conductivities of KCl, KNO3 and AgNO3 are 14.99, 14.50 and 13.34 mS-m2/mol, respectively (all at 25 °C). What is the limiting molar conductivity of AgCl at this temperature?The standard cell potential of a Daniell cell, with cell reactionZn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), is 1.10 V at 25 °C.Calculate the corresponding standard reaction Gibbs energy.
- If the specific conductance of a 0.02N acetic acid is 105.3 at 25oC, what is the ionization constant if the molar conductivity is 325.0?If the mitochondrial electric potential between the matrix and the intermembrane space were 42 mV, how much ATP could be synthesized from the transport of 4.5 mol H+, assuming the pH difference between the matrix and the intermembrane space is -1.5? Note that the standard Gibbs energy for the hydrolysis of ATP to ADP is -31 kJ/mol.Sodium acetate, NaCH3CO2, of mass 7.4 g is used to prepare 250 cm3 of aqueous solution. What is the pH of the solution?
- The limiting molar conductivities of KCl, KNO3, and AgNO3 are 14.99 × 10-3 S m2 mol-1, 14.50 × 10-3 S m2 mol-1, and 13.34× 10-3 S m2 mol-1, respectively (all at 25°C). What is the limiting molar conductivity of AgCl at this temperature?From the biological standard half-cell potentialsE⊕(O2,H+,H2O) = +0.82 V and E⊕(NADH+,H+,NADH) = -0.32 V, calculate the standard potential arising from the reaction in which NADH is oxidized to NAD+ and the corresponding biological standard reaction Gibbs energy.The standard Gibbs energy of formation of gaseous ozone at 25.0 ℃ ΔfGo, is162.3 kJ. mol-1, for standard state of 1 bar. The reaction is: 3O2 (g) ⇌ 2O3(g). Calculate the value of the equilibrium constant, K, for the above reaction.