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The rate at which an Australian tree cricket chirps is 184 per minute at 35 degrees C, but only 50 chirps per minute at 10 degrees C. Assuming that cricket chirping follows the Arrhenius Law, what is the activation energy for the cricket chirping (in kJ/mol)? Enter your answer using 3 significant figures.
the density of aluminum is 2.70 g/cm3 and the density of chronium is 7.19 g/cm3. if equal masses of aluminum and chronium are trasnferred in equal volumes of water in separate graduate cylinders, which graduated cylinder would have the greatest vo..
Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years. A rock is found to contain 84.3% of the am..
What is the mole fraction of Kr if the partial pressure of Xe and Ar are 1.60 atm and 2.8 atm, respectively?
How many grams of body mass does the person lose in about 8 h sleep if all the CO2 and H2O exhaled come from the metabolism of glucose
A brand of gasoline has a density of 0.737 at 25 degrees Celsius . How many grams of this gasoline would fill a 13.4 tank?
Barium chlorate in solution mixed with Silver fluoride
During the isomerization of trans-1,2-dibenzoylethylene C16H12O2 using 95% Ethanol C2H6O , and UV light irradiation. What is the overall equation for this reaction. What is the product.
The major product of the reaction is 2-ethoxy-2,3-dimethylbutane. In addition, 2,3-dimethyl-2-butene, 2,3-dimethyl-1-butene, and 3,3-dimethyl-1-butene are produced as minor products. Suggest a mechanism
The density of acetic acid vapor at the normal boiling point, 118.5 degrees C, is given by 3.15 g/L (normal boiling point is the boiling temperature at P = 1 atm). a) calculate the fraction of the vapor that is monomer and the fraction that is dime..
Carbon tetrachloride, CCl4, has a vapor pressure of 213 torr at 313K and 836 torr at 353K. What is the normal boiling point of CCl4
Petroleum is a fossil fuel containing many different carbon compounds. If the carbon atoms in petroleum have been in the ground for 325 million years
As a solid, Ag adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ag
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