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Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1.
(a) What is the half-life for this reaction?
(b) If you start with 0.052 M I2 at this temperature, how much will remain after 5.16 s assuming that the iodine atoms do not recombine to form I2?
Estimate the triple point pressure and temperature of water, given that the standard enthalpies of fusion and vaporization are 6008 j/mol and 43990 J/h at 273.15k and 298.15 k, respectively the vapor pressure of water at 25 c is 23.8 torr
What wavelength is expected for light composed of photons produced by an n=3 to n=1 transition in a hydrogen?
What is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 357 Torr at 25C vapor pressures at 25 C= pure pentane is equal to 511 torr, pure hexane equals 150 torr.
How many grams of formic acid, HCOOH, must be added to 0.210 L of 0.160 M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.10? Assume no volume change. Ka of HCOOH = 5.0 10-4.
How are fatty acid oxidation and different from one another, Metabolism uses various ways to ensure that 2 opposing pathways do not occur at the same time. For the following pair of pathways list 2 ways (different cell location
How much heat is required to warm 225 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
the mass loss of the iron nail was 1.511. How many moles of iron were converted to Fe3+?
Predict the outcome of the following reactions represented by the following equations by using the activity series, and balance the equations.
Calculate the vapor pressure lowering of a solution of 2.80 g of aspirin (molecular weight = 180.15 g/mol) in 45.0 g of methanol (CH3OH) at 21.2°C.
how many grams of sucrose C12H22O11 must be added to 522g of water to give a solution a vapor pressure 2.0mmHg less than that of pure water at 20 degrees celsius
Combining aqueous solutions of BaI2 and Na2SO4 gives a precipitate. Which ion(s) is/are spectator ions in the reaction
Draw lewis Dot structures. Use model kits, styrofoam balls and/or gum drops to make a model of the molecule or ion. Be sure to place electron groups (toothpicks or sticks) as far apart as possible.
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