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We have 500 mL of a solution with Ba^(2+)=0.10M. How many grams of LiF must be added to begin precipitation of BaF2? The Ksp of BaF2 is 1.7 x 10^(-6)
The self-amplifying reaction in which neutrons produced by the fission of one nucleus would induce fission in other nuclei is called
One of the product formed when 5-hexen-1-ol is treated with a catalytic amount of sulfuric acid is a cyclic ether
The heat of fusion, ?Hfus, of ethanol (C2H5OH) is 4.9 kJ/mol. The heat of sublimation of ethanol, for the process C2H5OH(s) ? C2H5OH(g) , is 43.5 kJ/mol. What is the heat of vaporization of ethanol?
Calculate total enthalpy change in the first stage and in both stages.
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
What is the maximum mass in grams of NH3 that can be produced by the reaction of 1.0g of N2 with 3.0g of H2
What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
a burning candle produces a luminous flame. What is the fuel for the burning candle. Why is the flame luminous
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams of naphthalene.
Transition from the n=7 to n=2 level of the hydrogen atom yields a photon at the edge of human visual perception. Determine the energy and wavelength of this light.
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
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