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What will be the value of E cell and E0 cell when the Cu/Zn battery has "run down" I.e., reached equillibrium? Also will the concentrations of Zn2+ and Cu2+ be large or small when the battery has "run down"? Does this make sense?
How much energy (in kilojoules) is required to convert 285 ml of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ?
Propane is often used for gas grills and is typically purchased by filling a propane tank with 20 pounds of propane. What is the enthalpy change when 18 pound of propane is burned?
A 12 kg block of ice has a temperature of -10.0 degrees celsius. The pressure is one atmosphere. The block absorbs 4.50 times 10 to the sixth power J of heat. What is the final temperature of the liquid water?
Estimate the triple point pressure and temperature of water, given that the standard enthalpies of fusion and vaporization are 6008 j/mol and 43990 J/h at 273.15k and 298.15 k, respectively the vapor pressure of water at 25 c is 23.8 torr
Why is mercury being replaced by other liquids such as colored alcohol as the temperature-sensing fluid
Using a solution prepared by adding 467 mL of 0.400 M silver nitrate with 421 mL of 0.503 M sodium phosphate then determines what is the silver ion concentration in? Ksp of silver phosphate = 2.8 × 10-18
A 4.82-L sample of carbon monoxide is collected at 55°C and 0.833 atm. What volume will the gas occupy at 1.05 atm and 25°C?
How many grams of the strong acid HClO4 must be combined with water to make 400 ml of a solution with a pH of 1.5.
Nylon undergoes depolymerization when heated in aqueous acid. Propose a reaction mechanism that accounts for this fact, using curved arrows to symbolize the flow of electrons.
Calculate the molarity of a solution of glycerol made by dissolving 46.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
24.6g of a hydrated salt of MgSO4.XH20, gives 12.0g of anhydrous MgSO4 on heating. What is the value of x?
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2 /H3O . Draw the structure of the alkyne (containing only carbon and hydrogen atoms).
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