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After an experimenter recovers 6.54 grams of sodium sulfate from the neutralization of sodium hydroxide by sulfuric acid, Explain how does he know how many grams of sodium hydroxide reacted?
Describe the method for checking for completeness of precipitation. Why are precipitates usually rinsed with distilled water before they are tested further.
Technetium-99 is a long-live radioactive isotope of technetium. Each nucleus decays by emitting one beta particle. What is the product nucleus?
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. O2(g) + 4H+(aq) + 4e- Picture 2H2O(l); E° = 1.229 V Al3+(aq) + 3e- Picture Al(s); E° = -1.662 V Overall reaction: 4Al(s) + 3O2(g) + 12H+(aq) ? 4Al3+..
calculate the number of ATP molecules that can be harvested during the complete oxidation of an 18-carbon fatty acid
Write the cell reaction and electrode half-reactions and calculate the standard potential of each of the following cells
To treat a thyroid tumor, a patient must be given a 170-mCi dose of iodine-131, supplied in a solution containing 41 mCi/mL. What volume of solution must be administered per dose?
a sample of H2O with a mass of 46.0 grams has a temperature of -58.0 C. how many joules of energy are necessary to heat the steam from 100.0 degrees Celcius to 114.0 degrees celcius if the specific heat of steam 2.01J/g degrees celcius.
Explain the structural differences between benzene and cyclohexane molecules: Explain what is a shape of each carbon atom on the benzene ring
a turbine operates by the impact of a high velocity jet of steam against the turbine blades. The steam leaves the turbine at a lower velocity. For the turbine depicted, steam from a high pressure nozzle enters the air and strikes the blades of a t..
Calculate delta S for the heating of 1 mole of SO2(g) from 75°C to 1350°C at a constant pressure of 1 bar.
Calculate the entropy change when neon, at 50 celsius and 1.00 atm pressure in a container of volume 0.500 dm^3 is allowed to expand to 1.00 dm^3 and simultaneously heated to 100 celsius
the reaction of potassium in water is extremely exothermic, what would be the problem with adding a large piece of potassium to a small amount of water?
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