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The electron affinity of tin (Sn) is -107 kJ/mol. (In this case, the negative sign of EA means that energy is required to remove an electron from the negative ion.) If the outer electron in a Sn- ion is removed by absorbing a photon of visible light having an energy of 3.618E-19 J, what is the amount of leftover energy that goes into the kinetic energy of the ejected electron?
a 4.5 g sample of LiCl at 25 C dissolves in 25 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy of solution.
Given that the ionization energy of gaseous potassium is 419 kJ mol-1, calculate the lattice energy of potassium chloride.
What is the detector in a spectrograph in which spectral lines are recorded photographically
Consider the following combustion reaction: 2C4H10 + 13O2 -> 8O2 + 10H20. 125 g of C4H2O react with 415g O2.
What is the pressure in millimeters of mercury of 0.0100 mol of helium gas with a volume of 211 mL at a temperature of 50^circ C?
For an elderly patient with impaired renal function, the dose is reduced to 250 mg every 6 hours. Calculate the reduction in the daily dose, in milligrams.
Benzene and biphenyl are typical by-produdcts of these grignard reactions. Give mechanisms for their formation. IR would not be of much use in differentiating these two byproducts
Nitrogen reacts with hydrogen according to the following equation.
Given a buret filled with 0.12 M acetic acid and a second buret filled with 0.15 M sodium acetate, how many milliliters of each solution should be mixed together to produce 21.0 mL of a solution with a pH of 4.70
Partition coefficient in octanol, A monoprotic acid with a Ka of 2.83 x 10-5 has a partition coefficient of 2.8 (favoring octanol) when distributed between water and octanol.
What is it about the structure of ammonia that will allow it to complex with metal ions whereas the ammonium ion (from ammonium sulfate) will not form complexes
When a monosaccharide reacts to give the pyranose form from its open-chain form, how many distinct pyranose forms are possible?
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