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The Born-Haber cycle is a series of steps that represent the formation of an ionic compound from a metal and a nonmetal. For example, the steps in a Born-Haber cycle for the formation of NaCl(s) consist of sublimation of the metal Na atom (?Hsubl-Na) to form a gaseous Na atom, bond dissociation of the chlorine molecule (BECl2) to form a gaseous Cl atom, ionization energy of the sodium atom (IENa) to form a gaseous Na+ ion, electron affinity of the chlorine atom (EACl) to form a gaseous Cl- ion, and the lattice energy of NaCl (LENaCl) involving the coalescing of the gaseous Na+ and Cl- ions to form a solid NaCl formula unit. With the above summary in mind, which particular steps of the Born-Haber cycle would be represented in the following reaction? K(g) + F(g) ? K+(g) + F-(g) A. IEK and EAF B. BEF2 and EAK C. BEK and BEF D. ?Hsubl-K, IEK and EAF
Consider an electrolysis cell that might be used to electroplate nickel onto other metal surfaces. Label the anode and the cathode
HCl according to the following chemical equation? MnO2+4(HCl) --> MnCl2 + Cl2 + 2(H2O)
Consider a glass of 215 mL of water at 28°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
At 700.°C, the total pressure of the system is found to be 3.45 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.
the freezing point of the solution is lowered by 4.10 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine
The atmospheric sulfur dioxide concentration over a certain region is 0.12 ppm by volume. Calculate the pH of the rainwater due to this pollutant. Assume the dissolution of SO2 does not affect its pressure.
A patient has 48 ml. of blood drawn and this volume of blood has a mass of 39.5 g. what is the specific gravity of the blood?
One ecologically important equilibrium is that between carbonate and hydrogencarbonate (bicarbonate) ions in natural water. (a) Th e standard Gibbs energies of formation of CO3
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
Chemistry - Other explained in this solution, If world energy consumption continues to rise at the present rate of 2.4%, how long will it take to double (expressed in years)?
Maleic acid contains 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen by mass. A 0.030-mol sample of this compound weighs 2.61 g.
Ammonium sulfide in solid form decomposes to ammonia gas and hydrogen sulfide gas. It is a reversible reaction The Kp at 25 degrees C is .109 In an experiment Ammonia gas and hydrogen sulfide gas each have a partial pressure of .5 atmospheres and ..
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