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As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively. A sparingly soluble salt, Herbigon is dissolved in 1 Macetic acid for technical reasons having to do with its production. You have determined that the solubility product Ksp of Herbigon is 9.1010?6.
\Although the formula of this new chemical is a trade secret, it can be revealed that the formula for Herbigon is X-acetate (XCH3COO, where "X" represents the top-secret cation of the salt). It is this cation that kills weeds. Since it is critical to have Herbigon dissolved (it won't kill weeds as a suspension), you are working on adjusting the pH so Herbigon will be soluble at the concentration needed to kill weeds. What pH must the solution have to yield a solution in which the concentration of X+ is 1.5010?3M ? The pKa of acetic acid is 4.76.
Suppose you were asked to carry out an aldol condensation reaction between benzaldehyde and 5-methylhexanal, modeled after the experiment you performed with benzaldehyde and acetone.
When a sucba diver goes to a dive shop to have her scuba tanks filled with air, the tank is connected to a compressor and filled to about 2100 psia while immersed in a tank of water (so that the compression of air into the tank will be approximate..
7.5g of ammonia at STP is heated to a temperature of 25C and simultaneously compressed to a volume of 8.0L. Calculate the new pressure of the gas.
a solid block of exactly 100.0 cm cubed has a mass of 153.6g. Determine its density.Will the block sink or float on water.
A xenon fluoride compound can be prepared by heating a mixture of Xe and F2 to a high temperature in a pressure- proof container made of nickel.
Use Le Chatelier's principle to explain the color change which you observed after the addition of distilled water to the equilibrium mixture above.
What fraction of the spherical atomic volume is occupied by the nucleus? What fraction of this atom's mass is contributed by its nucleus?
diethyl either is 34.5C and its latent heat of vaporization is 6.38 kcal/mol. Calculate its vapor pressure
Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?
Compare the release of S02 in the scrubbed flue gas (determined in Problem 14.6) with the EP A limit of no more than 520 nanograms S02 per joule of heat input to the boiler.
The lighter isotope has an abundance of 67.7%. Calculate the atomic mass of the element X.
A major oil company has used a gasoline additive called MMT to boos the octane rating of its gasoline. What is the emperical formula of MMT if it is 49.5% C, 3.2% H, 22.0% O, and 25.2% Mn.
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