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a) Compute the work associated with the isothermal, reversible expansion of 1.0 mol of an ideal gas from 7.0 L to 15.50L at 25celcius.
b.) Compute the work associated with the irreversible adiabatic expansion of the sample of gas described in part a) against a constant atmospheric pressure of 760Torr.
c.) Explain how will the temperature of the gas in part (b) compare with that in part (a) after the expansion?
It takes 78.2 J to raise the temperature of 45.6 g lead by 11.3 degrees C. Calculate the specific heat capacity of lead
Iodine-131 has a half-life of 8.0 days. If a person ingests 2.5 mg of NaI labeled with iodine-131, how much of the radioactive isotope remains in the body after 30. days
Drying agents called desiccants can be based on the cobalt complexes shown; Co(H2O)6^2+(aq) + 4Cl^-(aq) CoCl4^2-(aq) + 6H2O(l)
74.0 mL of a 1.80 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 179 mL of water. What is the final concentration.
What is the first step in an aldol condensation reaction. A. Elimination of hydroxide. B. Bromination of carbonyl compound. C. Addition into the carbonyl. D. Formation of the enolate. E. Protonation of the carbonyl compound.
Explain the density of concrete is about 120 pounds per cubic foot. Alter this value into the units of grams per cubic centimeter. Explain the length of one side of a concrete cube that weighs 120 pounds
Draw the Lewis structure of the lowest energy imidazolium ion. This is the lowest energy product formed when imidazole is protonated.
A common by-product in this reaction is biphenyl, which is generated through a coupling reaction of phenylmagnesium bromide with unreacted bromobenzene. Draw the structure of biphenyl.
Assume the temperature of the mixture is chosen so that Kp=0.12. Predict the effect on the partial pressure of SO3 as equilibrium is achieved by using Q, the reaction quotient.
Glycine has a standard entropy of 103.5J/K/mol and methylamine has standard entropy of 243.41 J/K/mol. How is this possible if glycine has a higher heat capacity.
A .1155 L sample of an unknown HNO3 solution required 42.9mL of .10M of Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution
Assume that you need to prepare 4-methyl-2-pentyne and discover that the only alkynes on hand are acetylene and propyne. You also have available methyl iodide, isopropyl bromide,
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