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Fluorine 18, which has a half live of 110 min, is used in PET scans. If 100 mg of fluorine 18 is shipped at 8am, how many mg of the radioisotope are still active if the sample arrives at 130 pm
Given that translational and rotational degrees of freedom typically behave classically, but vibrations behave quantum mechanically, the total (avg) energy of a diatomic is predicted to be U= (5/2)RT+ , where is obtained from Eq.124.
The reaction vessel is charged initially with SO3(g) and NO(g), each at a partial pressure of 0.500 atm. In the space below, enter the equilibrium the partial pressure of SO2(g) in units of atm
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
How can one draw a best fit straight line on a temperature versus time graph to determine the temperature at which two phases (solid plus melting point) appear
Write the complete mechanism for the reaction of the above molecule with HCl. Used curved arrows to indicate the formation or breakage of covalent bonds, label all charges, and show each step separately.
What is the molarity of a solution containing 1.35 mol H2SO4 in 245 mL of solution
At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
Are there certain shapes (tetrahedral, bent, linear) of coordinated covalent bonds that will signal if it is polar or non-polar
Compute the final pressure in the tank if nothing else is altered in the surroundings. (The two gases do not react)
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Using the original buffer solution,
What is the molar heat of vaporiza-tion of C6H6 if the vapor pressure of C6H6 is 120 torr at 27 degree celsius, and its normal boiling point is 80.1 degree celcius.
The O-H stretch of a concentrated solution of an alcohol occurs at a lower frequency than the O-H stretch of a dilute solution.
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