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Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00 M solutions of their ions. a) If connected as voltaic cells in series, which two metals are plated, and what is the total potential? (Al,Ag,Zn,Ni) b) If connected such that one cell acts as a battery to power the other as an electrolytic cell, which two metals are plated, and what is the total potential? (Al,Ag,Zn,Ni) c) If 3.70 g of metal is plated in the voltaic cell, how much metal is plated in the electrolytic cell?
Recognizing that both meso- and dl- forms of hydrobenzoin are optically inactive. what fundamental experimental approach can be employed to distinguish
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.740 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane
calculate how many moles of KIO3 are needed to make 50 ml of 0.20 M solution?
At the equivalence point of the titration of formic acid by NaOH, the pH of the solution is around 8 - 10. What would be a good indicator
Find the entropy change of the system and of the surroundings if 3.000mole of water freezes reversibly at 1.000atm. the freezing temperature is 0.00C at this pressure, and the specific enthalpy change of fusion is equal to 79.7cal/gm at this tempe..
Calculate the mass percent of a solution that is prepared by adding 61.4 g of rm NaOH to 413 g of {rm H_2O}.
a 1.0 ounce piece of chocolate contains 15 of caffeine and a 6.0 ounce cup of regular coffee contains 105 of caffeine.
A lactic acid/lactate ion buffer solution contains 0.43M HC3H5O3 and 0.62M C3H5O3^-, respectively. The value of lactic acid is 1.4*10^-4. Calculate the pH of this buffer.
Graphite is a semi-metal composed of sheets of fused benzene rings. There are no bonds between sheets, only van der Waals interactions
They are tethered together and are at the same temperature and pressure. Which balloon has the greater number of gas particles? Which balloon has the greater mass? Which balloon has the greater density?
Platinum crystallizes with a face centered cubic lattice. The atomic radius of platinum is 0.138nm, and the atomic mass is 195.1 . (a) Calculate the lattice parameter of Pt from these data
What is the silver ion concentration in a solution prepared by mixing 339 mL of 0.398 M silver nitrate with 405 mL of 0.591 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12
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