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Presuming equal concentrations and complete dissociation rank these aqueous solutions by their freezing point from highest to lowest.
Na2CO3
CoCl3
LiNO3
Determine the heats of formation or the steric energies of the exo-and endo-anhydride adducts using a molecular mechanics program. What do these energies tell you about the mechanism of the reaction
what wind flow rate entering the canyon would produce a pollutant concentration greater than 0.0025 gmol/ft^3 in the air coming out of the canyon?
Determine hvap for a compound that has measured vapor pressure of 24.3 torr at 273 k and 135 torr at 325 k
To find the pKa of X-281, you prepare a 0.075 M test solution of X-281. The pH of the solution is determined to be 3.00. What is the of X-281.
half-life equation for first-order reactions t120.693k where t12 is the half-life in seconds and k is the rate
An apparataus has three bulbs, a,b, and c. a has h2o, co2, and n2 with a pressure of 564 mmHg, Bulbs b and c are empty. bulb a is 25 degrees celcius, b is -70 celcius and c is -190 celcius. how many moles of h2o are in the system if the stopcock b..
Based on the functional group(s) present in the two compounds, determine 3 physical properties for each of the two compounds. Using these physical properties determine how each of the two compounds uniquely function in the products in which they ar..
the rate law for a hypothetical reaction is rateka2. when the concentration is .10 molesliter the rate is 2.7 times
Ethylene epoxide (C2H4O) decomposes to form CH4 and CO. Small quantities of H2 and C3H6O are also formed. The following reaction mechanism has been proposed:
Calculate the maximum molar concentration of a solution that can be purified by reverse osmosis using this membrane at 25 degree C.
The first substance to act as a superconductor above the temperature of liquid nitrogen (77 K) has the approximate formula YBa2Cu3O7. Explain what is the percent by mass of Cu in this compound. symbol "Y" is not a typo error it is actually a symbo..
A platinum refinery generates a platinum ingot weighing 150 lb. If the platinum is drawn into wire whose diameter is 6.50 mm, explain how many feet of platinum can be obtained from the ingot
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