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Calculate the standard cell potential at 25 degrees celsius for the reaction X(s)+2Y+(aq) -> X^2+(aq)+2Y(s) where delta H = -733 kJ and delta S = -279 J/K Express your answer to three significant figures and include the appropriate units.
Radiation therapy. An effective treatment for some can cancerous tumors involve irradiation with fast neutrons. The neutrons from one treatment source have an average velocity of 3.2 X10-7 m/s.
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C.
14 g of Si reacts with 16 g of O to produce SiO2, the only product, with no reactant left over. How much SiO2 would be produced from 34 g of Si and excess O?
With which of the metals Cu(s), Al(s), Ag(s), Fe(s) and Zn(s) is reaction with H+(aq) ions to produce H2(g) a spontaneous reaction. Select three oxidizing agents that are capable of oxidizing Cl-(aq) ions to Cl2(g)
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
What mass of sucrose C 12 H 22 O 11 must be mixed with 543 grams of H 2 O to make a solution with an osmotic pressure =8.00 atm at the temperature of 12 degree celsius?
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?
calculate the mass of water that must be added to 0.45 mol of glucose to make a solution of 15.0 percent by mass. the molar mass of glucose is 180 g/mol
Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. what is the Ka for the acid
Write a balanced chemical equation for the reaction of chlorine with thiosulfate ion, assuming an acidic solution.
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
For each of the following acid-base reactions, calculate the mass (in grams) of each acid necessary to completely react with and neutralize 5.15 of the base.
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