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Gases W, X, Y, Z obeys Vander Wakes equation of states with a and b values are given in liter-atm units. Explain which gas has the highest critical temperature? Explain which gas has the largest molecules? Explain which gas has the most nearly ideal gas behavior at Standard Temperature and Pressure?
Some atomic properties depend on the average value of 1/r rather than the average value of r itself. Evaluate the expectation value of 1/r for a hydrogenic helium 1s orbital.
Define Carborundum (SiC) is a hard substance made by combining silicon dioxide with carbon(C) as follows- SiO2(s)+3C(s) = SiC(s) + 2CO(g). Define what mass of SiC is formed from the complete reaction of 4.8 mol of carbon
When solid ammonium chloride, NH4Cl, is added to excess water, a solution forms and the temperature of the system decreases. In a certain experiment, 0.10 mole of NH4Cl is added to a liter of water in an open glass beaker at 298 K
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
How much time is required for a 6.85 sample of to decay to 0.500 if it has a half-life of 27.8 days
What is the pH when 100 mL of 0.1 M NH3 is titrated with 50 mL of 0.2 M HCl? pKa of NH4Br is 9.25.
Acyl chloride can hydrolyze in water spontaneously to carboxylic acid. In the interfacial polymerization water is used as one of the solvent, why you don't have to worry about the hydrolysis of sebacoyl chloride in this action
provide the newman projections across the c2-c3 bonds for the major conformers after drawing the zig-zag structures of
calculate the mass of nitrogen dissolved at room temperature in an 80.0 rm l home aquarium. assume a total pressure of
at a certain temperature the vapor pressure of pure benzene c6h6 is 0.930 atm. a solution was prepared by dissolving
a skyscraper in pittsburgh built in the early 1970s is supported by water filled columns. potassium carbonate was added
An effective treatment for some cancerous tumors involve irradiation with "fast" neutrons. The neutrons from one treatment source have an average velocity of 3.3 x 10^7 m/s
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