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Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm. The standard cell potential is 0.392 V.
Zn(s) 2 H2O (l) 2 OH- (aq) -> Zn(OH)42- (aq) H2 (g)
If you prepared a solution by adding equal numbers of moles sodium sulfite (Na2SO3) and sodium hydrogen sulfite (NaHSO3) to 50 mL water, what would be the pH of the solution?
Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 degrees C are converted to 50 grams of ice at -125 degrees
Use the dipole moments of and ( = 1.08, = 1.82) together with the percent ionic character of each bond ( 20% ionic, 45% ionic) to estimate the bond length in each molecule.
Calculate the pH of a buffer formed by mixing 60. mL of 0.10 M lactic acid with 88 mL of 0.24 M sodium lactate.
A compound with empirical formula C 2 H 2 N dissolved its 0.0800 gram in 10.00 g of C 6 H 6 , freezing point of resulting solution= 4.99 degree celsius
Calculate total enthalpy change in the first stage and in both stages.
Proceeds at a certain temperature until the partial pressure of H2O, H2, and O2 reach 0.0500 atm, 0.00200 atm, and 0.00800 atm respectively. What is the value of the equilibrium constant at this teperature?
Which compound accepts electrons from NADH, producing a compound that can pass through the inner membrane?
Explain why a determination of the rate law can never prove a proposed reaction mechanism but can sometimes disprove
Calculate the amount of water in liters that would have to be vaporized at 40 C (approximately body temperature) to expend the 2.5 x 10^6 calories of heat generated by a person in one day (commonly called sweating).
what is the pressure in a gas containter that is connected to an open-end manometer if the pressure of the atmosphere is 722 torr and the level of mercury in the connected to the container is 8.60cm
Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
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