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Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 . How many moles of gold fit in a sheet with a length of 72.3 , a width of 26.9 , and a thickness of 12.2?
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite.
A 22.0 mL sample of vinegar, which is an aqueous solution of acetic acid, HC2H3O2 , requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
Calculate the equilibrium constant, Ke, for the reaction assuming the concentrations for reactants and products are the following
If during the course of the reaction, the vessel is found to contain 9.75mol of C, 15.0mol of H2O, 3.10mol of CO, and 7.80mol of H2, what is the reaction quotient Q?
What are the n and l quantum numbers of the electron removed when Bi is ionized to Bi+ and would you expect element 115 to have ionization energy greater than, equal to, or less than that of bismuth? Explain.
What is the equilibrium concentration of Fe3+ after adding .180 mol of Fe(NO3)3 to a solution of CN-. The final volume of the solution is 1 L and the concentration of CN- is 2.982 M. Kf = 9.1e41
What type of interaction does Ultraviolet, Visible, and Infrared regions of the spectrum have with matter?
Calculate the concentrations of all species present and the pH in 0.10 M solutions of the following substances. See appendix C for values of equilibrium constants
the world's estimated annual gas reserves in 2006 were 6124 trillion ft3 .The world rate of annual use was 105.5 trillion feet3. How long these reserves will last if the rate of use continues?
What mass of silver chloride can be produced from 1.27L of a 0.298M solution of silver nitrate
Calculate the number of photons that were absorbed by the water. Assume water has a density of 1.00 g/ ml and its specific heat is 4.184 J/ G 0C
what is a disccussion part for determination of the molar volume of a gas and atomic weight of a metal?
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