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A system undergoes a two-step process. In step 1, it absorbs 50. J of heat at constant volume. In step 2, it releases 5 J of heat at 1.00 atm as it is returned its original internal energy. Find the change in the volume of the system during the second step and identify it as an expansion or compression.
I need proficient help in the above problems.
A solution of Mg(NO3)2 is 0.311 M. Calculate the concentration of the solution in milligrams Mg(NO3)2 per 10.0 mL of solution.
Calculate the enthalpy change for the reaction in kJ/mol HCL. For this problem, assume that the calorimeter loses only a negligible quantity of heat, the total volume of the solution is 100 ml, the density of the solution is 1.0 g/ml, and its spec..
What fraction of the O3 will have reacted when the rate falls to one-half of its initial value?
When acetic anhydride is dessolved in water it forms acetic acid according to the balanced chemical reaction. Calculate the theoretical yield (in grams of acetic acid, FW 60.05 g/mol) if 8.79mL of acetic anhydride
How much heat does your body lose when 2.60 of sweat evaporates from your skin at 25 ? (Assume that the sweat is only water.) The heat of vaporization of water at 25 degrees C is 44.0g.
The equilibrium concentrations of NH3, N2 and H2 are 0.25M, 0.11M and 1.91M, respectively. The equilibrium constant kc for the reaction N2(g) + 3H2(g)======2NH3(g) is
a quantity of liquid methanol is introduced into a rigid 3 l vessel the vessel is sealed and the temperature is raised
How would I do that? I have a diagram for a trigonal bipyramidal crystal field and two values are on the diagram. There's a delta 0.19 and a delta 0.79.
Compare and contrast the endo vs exo-nuclease excision repair mechanisms of DNA polymerase.
Consider the following balanced chemical reaction: 3FeCl2 + 2Li3PO4 ---> 6LiCl + Fe(PO4)2. How many liters of a 2.50 M FeCl2 solution are needed to completely react with 96.2 mL of a 1.78 M Li3PO4
Suppose a sample of Zn(s) is reacted with HCl(aq) to form hydrogen gas. Explain the H2 gas bubbles out of aqueous solution and is collected in a 552.0mL container at 618.3 Torr and 25 C. Explain how many grams of zinc reacted. Be sure to account f..
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for t..
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