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Nuclear Fusion

Q. for the fusion reaction shown, calculate the change in energy of the reaction in units of joules per mole. 21H + 21H →32He + 10n

Solved • Dec 6, 2019

Equilibrium Expressions

Q. The equilibrium constant, Kp , for the following reaction is 0.110 at 298 K. NH4HS(s) <---> NH3(g) + H2S(g) If an equilibrium mixture of the three compounds in a 4.04 L container at 298 K contains 2.01 mol of NH4HS(s) and 0.173 mol of NH3(g), the partial pressure of H2S(g) is what? (in atm)

Solved • Dec 6, 2019

Equilibrium Expressions

Q. Consider the following reaction: PCl5(g) <---> PCl3(g) + Cl2(g) If 9.48×10-4 moles of PCl5, 0.307 moles of PCl3, and 0.266 moles of Cl2 are at equilibrium in a 14.3 L container at 726 K, the value of the equilibrium constant, Kp, is

Solved • Dec 6, 2019

Ksp

Q. Calculate the solubility (in mol/L) of Co(OH)3 (Ksp = 3 ✕ 10−43) in each of the following. (Assume that all solutions are at 25°C. Enter unrounded values.) C) a solution buffered at pH = 11.1

Solved • Dec 6, 2019

Ksp

Q. Calculate the solubility (in mol/L) of Co(OH)3 (Ksp = 3 ✕ 10−43) in each of the following. (Assume that all solutions are at 25°C. Enter unrounded values.) B) a solution buffered at pH = 5.5

Solved • Dec 6, 2019

Ksp

Q. Calculate the solubility (in mol/L) of Co(OH)3 (Ksp = 3 ✕ 10−43) in each of the following. (Assume that all solutions are at 25°C. Enter unrounded values.) A) water (assume pH is 7.0 and constant)

Solved • Dec 6, 2019

Galvanic Cell

Q. Which of the following statements regarding a concentration cell is false? Group of answer choices The two half-reactions involve the exact same species. When the concentrations are equal, the cell potential increases. Electrical work is done solely by the difference in the concentration of the components. Electrons flow from the less concentrated electrode to the more concentrated electrode. It is a voltaic cell under nonstandard conditions.

Solved • Dec 6, 2019