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Consider an electrochemical cell consisting of two vessels connected by a porous separator. One vessel contains 0.650 M HCl solution and an Ag wire electrode coated with AgCl solid. The other vessel contains 1.70 M MgCl2 solution and a Mg wire electrode. First determine the net reaction, and then calculate the emf of this cell. Enter your answer in volts.
A current of 4.85 A is passed through a Cu(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 7.60 g of copper?
Calculate the cell potential for the following reaction as written at 53C, given that [Zn2+]= .841M and [Fe2+]= .0160M. Standard reduction potentials are Zn(s)= -.76, Fe2+(aq)= +.771, Zn2+(aq)= -.76, Fe(s)= -.04
A nugget of pure gold of 4.80 grams absorbed heat of 283 Joules. if the temperature was 23.0°C initially then determine what was the final temperature of the Au gold it is given that the specific heat of Au= 0.129 J/(g·°C).
Calculate the molar heat of neutralization (in kJ mol-1). The heat capacity of the calorimeter is 10 cal/g·0C.
These air conditioners are recharged from stockpiled supplies of CFC-12. If each of the 100 million automobiles contains 1.1 kg of CFC-12 and leaks 25% of its CFC-12 into the atmosphere per year, how much Cl in kilograms is added to the atmosphere..
Calculate the root mean square velocity of the CH4 molecules in a sample of CH4 gas at 281 K and at 533 K.
Problem- Draw the Lewis structure for CH2. Which of the following statements is the valence bond description of the bond between carbon and oxygen in this molecule
Desribing molecular forces of C5H6O, CH2=CH-CH=CH-CH=O, THREE double bonds. We are asked to describe the bond and angle terms of this structure.
A balloonn containing a sample of Helium gas is warmed in an oven at constanst pressure. If the balloon measure 1.25 l at room temperature (20c), what is it volume at 98 c
a gas mixture with total pressure of 300 torr consists of equal masses of neatimc weight 20 and ar atomic weight 40.
the solubility of oxygen in lakes high in the rocky mountains is affected by the altitude. if the solubility of o2
For a solution having 1.00 x 10-3 eq/L total alkalinity contributions from HCO3(-), CO3(2-), and OH(-) at H(+) = 4.69 x 10^-11, explain what is the percentage contribution to alkalinity from CO3(2-)
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