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"You invest $7,200 now and receive $3,600 at the end of year 1, $3,400 at the end of year 2, $3,200 at the end of year 3, and so on. In what year do you break even on your investment? Use the discounted payback approach and assume an annual interest rate of 5.5%, compounded annually. Enter your answer as an integer."
Why do immunoglobulins have both "constant" and "variable" regions? explain how this aspect of the structure is important for the function of each region.
If 5.0L of nitrogen at 12°C and 1.30atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure
what is a cyanide based compound used in synthesis of methadone?
Methanol, CH3OH, is a nonelectrolyte; acetic acid, HC2H3O2, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte. What are the solute particles present in aqueous solutions of each compound? (Select all that apply.)
1-bromobutane was added to a solution of sodium iodide in acetone. One of the possible side products of this reaction is dibutyl ether. Provide the mechanism of thus molecule.
the heat of vaporization of isopropyl alcohol c3h7oh is 42.1 kjmol. how many grams of water at 0oc could be frozen to
A H atom emitts a photon with a wavelength of 4.34 × 102 nm. If the energy of the initial state of the H atom was -8.72 × 10(-20) J, calculate the energy of the final state. Express answer in scientific notation.
Acetylene gas, C2H2(g), is used in welding. (a) Write a balanced equation for the combustion of acetylene gas to CO2(g) and H2O(l). How much heat is produced in burning 1 mol of C2H2 under standard conditions if both\ reactants and products are bro..
The energy of activation is reduced to 25 kJ/mol for the enzyme catalyzed reaction. Please calculate the rate constant of the catalyzed and uncatalyzed reactions.
For a particular chemical reaction deltaH = -5.5kJ and deltaS = -25J/K. Under what temperature condition is the reaction spontaneous
Diphosphorus pentoxide is added to water Hydrogen sulfide gas is bubbled through a solution of silver nitrate
A tank containing liquid butane and one containing liquid propane are sitting adjacent to one another. Each tank is equipped with a regulator with a pressure gauge
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