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Considering the following two nuclear processes which produce isotopes useful for medical imaging.
i) Isotope A +1 p ---- 15 O + 1 n
18 0
ii) Isotope B + 1 n ---- Isotope C ---- 99 Mo + 133Sn + 4 1 n
042 50 0
Find the mass number and the atomic number for the unknown isotopes A B and C and identify them. Explain how you arrived at your answer.
The absorption rate constant is smaller than the elimination rate constarnt. Therefore, the terminal decline of the plasma concentration versus time curve reflects absorption not elimination.
You are asked to prepare a 0.8500 M solution of aluminum nitrate. You find that you only have 50.00 g of the solid. What is the maximum volume of solution that you can prepare
A 2.39-mg sample of safrole was dissolved in 103.0 mg of diphenyl ether. The solution had a melting point of 25.70 C. Calculate the molecular mass of safrole. The freezing point of pure diphenyl ether is 26.84 C, and the freezing-point depression ..
How much 1.0 M NaOH must be added to a 100 ml of 10 mM H3PO4 to raise the pH of the solution to 7.0? B) If 2 volumes of 2.0 M Na2HPO4 are added to 1 volume of 0.1 M H3PO4, what is the pH of the resulting phosphate buffer?
How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.
What is the equilibrium constant, Kc, for the reaction at this temperature?
Before the reaction began, the concentrations of the reactants were 0.060 M of SO2 and 0.050 M O2. After the equilibrium is reached, the concentration
A proton that absorbs radio frequency radiation at higher field strength will appear ________ in a 1H NMR spectrum a.) at 0 ppm
What about the molecule as a whole? Is that molecule CH4 a polar or non-polar?
Using bond enthalpies, estimate the heat of the gas phase reaction of methane with bromine to form methyl bromide and hydrogen bromide.
What velocity would an electron (9.11x10^-31kg ) need for its de Broglie wavelength to be that of red light (745 nm)?
Write the expressions for Kc for the following reactions. a. 2O3(g) --> 3O2(g) b. Ti(s) + 2Cl2(g) --> TiCl4(l) c. 2C2H4(g) + 2H2(g) --> 2C2H6(g) + O2(g)
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