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An equilibrium mixture of PCl5 (g), PCl3 (g) and Cl2(g) has partial pressures of 217.0Torr, 13.2Torr, and 13.2Torr, respectively. A quantity of Cl2 (g) is injected into the mixture as well as the total pressure jumps to 263.0Torr at the moment of mixing. The system then re-equilibrates.Compute the new partial pressures for PCl3, PCl2 and PCl5?
Determine the maximum number of electrons that can be found in each of the following subshells.
If the energy levels of hydrogen like one-electron ions of atomic number Z differ from those of hydrogen by a factor of Z^2. Forecast the wavelength of the 2s--->1s transition in He+.
A semiconductor of n-type is know to have an electron concentration of 3 x 10^18 m ^3 if the electron drift velocity is 100 m/s in an electric field of 500 V/m, calculate the conductivity of this material.
The dipole moment (h-BR) of (a polar covalent molecule) is 0.82 (debye), and its percent ionic character is 12.1. Estimate the bond length of the bond in picometers.
In the presence of excess thiocyanate ion, SCN-, the following reaction is first order in chromium (III) ion, Cr3+; the rate constant is 2.0 x 10-6/s.
negative or about 0. For each, indicate whether the process is always spontaneous, never spontaneous, spontaneous at high temperature or spontaneous at low temperature.
In a solution containing the following dissolved species, which would contribute positively to alkalinity. Explain
A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 128 pm and the density of the element is 8.92 g/cm3. What is the identity of the metal?
Enter the half-reactions and the balanced cell reaction for the following galvanic cells. (Enter states of matter in your answer.)
Initially a container contains 0.75 M HBr and no product. What is the equilibrium concentration of HBr if the equilibrium concentration of H2 is 0.14 M
Determine the number of sulfate ions in 2L of a 0.5M CaSO4 aqueous solution. Then, determine the number of calcium ions dissolved in the same aqueous solution.
An aspirin tablet has a mass of about 325 mg (5 grains). Calculate the total mass of aspirin tablets in a 250- tablet bottle in grams and ounces.
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