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The above reaction yields a mixture of two Diels-Alder adducts. In the box below draw the structure of both products.
If water at the boiling point is saturated with potassium hydrogen tartate, 30 mL of the solution requires 49.5 mL of 0.2 M NaOH in a titration. What is the KSP of potassium hydrogen tartate at this temperature and what is the solubility in g/L.
Calculate the pH of of a solution prepared by mixing 60.0 mL of 0.160 M HCl with 15.0 mL of water. How much antacid containing 400.0 mg of Mg(OH)2 in 5 mL of water is needed
Calculate how long will it take for a sample of radionuclide with a half-life of 27.1 days decay to 1.0% of its original value.
Calculate the vapor pressure of the solution at 25oC when 12.43 grams of testosterone, C19H28O2 (288.4 g/mol), are dissolved in 246.7 grams of diethyl ether.
Iincreasing the total pressure on the system by decreasing its volume, (c) adding gaseous I2 to the reaction mixture?
Suppose you started with 2.6 M of HCN(aq), what would be the molar concentration of HCN(aq) at 20 days?
monoprotic acid, has a pH=2.00. What is the value of the ionization constant, Ka for this acid?
Calculate delta Grxn(in KJ) for the following reaction at 298K: 2H2(g)+CO(g)=CH3OH(g) given that delta H=-90.7 Kj and delta S=-221.5 J/K for this process.
The coal that is burned is a form of pure carbon. (Diamonds and graphite are other forms of pure carbon). A sample of coal is completely burned in a 10.0 L cylinder at a constant pressure of 1.10 atm and a temperature of 1000 oC.
Describe the nature and characteristics of PCB's. Why are they of importance to an EH&S or FS professional who encounters them when coming upon an incident scene where they are present?
A 0.440 g sample of butyric acid (an organic acid consisting of C, H, and O atoms) is combusted in excess oxygen, yielding 0.882 g CO2 and 0.360 g H2O.
Explain why most of the difference in omega-3 PUFAs in Alaskan salmon are seen in the phospholipid component of the fish rather than in the triglyceride component of the fish
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