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Question: A certain first-order reaction has a rate constant of 2.75 x 10-2s-1 at 20oC. What is the value of k at 60oC if E = 105 kJ/mol?
a) 0.963 s-1
b) 1.14 s-1
c) 2.89 s-1
d) 4.88 s-1
e) 5.18 s-1
Describe in detail(ex:individual resins used, etc) the purification of a protein from bovine liver that has the following characteristics
A gaseous fuel mixture stored at 745mmHg and 298 K contains only methane CH4 and propane C3H8. When 11.5L of this fuel mixture is burned, it produces 774kJ of heat. What is the mole fraction of methane in the mixture
Calculate the energy change in kilojoules per mole when lithium atoms lose an electron to bromine atoms to form isolated Li+ and Br- ions. [The Ei for Li(g) is 520 kJ/mol; the Eea for Br(g) is -325 kJ/mol.]
Choose the answer in which the three atoms and/or ions are listed in order of increasing EXPECTED size (smallest particle listed first) assuming that the simple shell model of the atom is correct.
A 0.338-g same of anhydrous sodium carbone, Na2CO3, is dissolved in water and titrated to a methyl orange endpoint with 15.33 mL of a prepared hydrochloric acid solution. What is the molar concentration of the HCl solution
when companies sell compressed gas in steel cylinders, they usually quote the contents as volume of gas at 1 atm pressure at tempertaure of 20 degrees celcius.
what is the required time at 675 degrees celsious to have only 25% Austenite left during the transformation from Austenite to Pearlite?
one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?
What is the color of most salts containing the copper (II) ion. the color of most salts containing the cobalt (II) ion. the color of most salts containing the nickel (II) ion
A saturated solution of magnesium hydroxide in equilibrium with undissolved solid is prepared at 25 degree celcius. The pH of the solution is 11.03. Calculate the value of the Ksp
Assuming that teh F-18 can be transported at 58.0 miles/hour, how close must the hospital be to the cyclotron if 63% of the F-18 produced is to make it to the hospital
The concentration of the first ion to precipitate (either Al3+ or Ca2+) decreases as its precipitate forms. What is the concentration of the this ion when the second ion begins to precipitate?
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