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Phosgene (COCl_2) has been used as a chemical agent in warfare. It blisters the lungs when breathed. Consider the following reaction:CO(g) + Cl_2(g) --> COCl_2(g)
Important units:CO: delta H = -110.5 kJ/mol and S = 197.6 J/mol*KCl_2: delta H = 0 kJ/mol and S = 223 J/mol*KCOCl_2: delta H = -223 kJ/mol and S = 289.2 J/mol*K
Calculate the temperature at which this reaction changes from spontaneous to non-spontaneous. Answer in units of K.
Radiation with a 58.4 nm of wavelength interacts with a H 2 (hydrogen atom)and induces the ejection of an electron then determine the kinetic energy of the departing electron express your answer in eV?
What wavelength radiation (nm) must be used to eject electrons from chromium metal with a velocity of 1.50 x 10^6 m/s? The ionization energu of chromium metal is 7.00 x 10^-19 J
Does the product xyz necessarily vanish when integrated over a a) cube, b) tetrahedron, c) hexagonal prism, each centered on origin?
If 110 {rm mg} of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 P.M.
the reaction is spontaneous below a certain temperature. Calculate that temperature. values are for delta H and delta S respectively.
The element is so highly unstable that no observations of its properties have been possible. Based on its position in the periodic table, propose two different reasonable valence electron configurations for this element.
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.087 M in NaClO?
Sodium hydroxide comes in a pellet form in bottles from laboratory supply companies but it cannot be used as a primary standard. Why not
What mass of carbon monoxide in grams is present in a room measuring 8.5 12.0 18.4 ft ?
Determine how many atoms there are in 1 gallon using your knowledge of mole calculations and unit conversions. Assume that the molecular formula for gasoline = C6H14 ,the density of gasoline =0.85 grams/mL
Draw the structure of the product that is formed when diphenylmethanone undergoes a reaction with PhMgBr and then is treated with water.
As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over the cause of the sparking, with one stating that the microwaves "herd" electrons into "pointy" areas of the metal object,
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