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The delta Hvap of a certain compound is 15.39 kj*mol^-1 as well as its delta S vap is 58.08 J*mol-1*K-1. Explain what is the boiling point of this compound?
Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
An electron moves from the n=1 to the n=6 energy level. The value of the Rydberg constant is RH = 1.097 x 107 m-1. Is energy emitted or absorbed. What is the wavelength of the energy emitted or absorbed (in meters)
Write, using correct notation, the balanced nuclear reaction equation for each of the following:a. Electron capture by 93/43 Tc
The following compound can be used to make an addition polymer. Show the general structure of the polymer that it will form. Ch2=CH(COOCH3)(CH3)
Which of the following substances has a standard heat of formation of zero. A. pb @ 1000 degrees C B. C3H8 @ 25.0 C and 1 ATM pressure C. Solid glucose @ room temperature D.N2 @ 25.0 and 1 atm pressure
How many grams of formic acid, HCOOH, must be added to 0.240 L of 0.110 M sodium formate, HCOONa, to yield a buffer solution with a pH of 3.50. Assume no volume change. Ka of HCOOH = 5.0 10-4
The Instructor recently had his car inspected by the KWIK Stocker State Inspection at Webster, Texas. The table below shows part of the Emission Test Results.
Describe the intermolecular force that must be overcome in converting the following from a liquid to a gas.
When a strong acid and strong base titration is not at equivalence, the pH can be found by finding the number of moles of H3O+ or OH- in excess, converting to [H3O+] or [OH-], and solving for the pH.
A gaseous hydrocarbon fuel is burned in 26.84% excess oxygen and the exhaust gas analyzed. On a dry basis, the ratio of carbon dioxide to carbon monoxide to oxygen in the exhaust gas
the empirical formula for a group of compounds is chcl. lindane a powerful insecticide is a member of this group. the
If the equilibrium concentration of Cd2+ ion is 1.5 X 10-6 M, calculate the equilibrium concentration of OH- in an aqueous equilibrium between solid Cd(OH)2 and its ions. (Ksp for Cd(OH)2 is 2.5 X 10-14)
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