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A radio station broadcasts at a frequency of 101.3 MHz. (1 mHz = 10^6Hz). What is the wavelength and energy of this radiation
aqueous salicylic acid with 0.020 M KOH(aq), calculate the addition of 30.0 mL of KOH(aq)? For salicylic acid, pKa=2.97
Explain why the elimination reaction in acetone promotes an E2 mechanism while water promotes and E1 mechanism? Which product is more thermodynamically stable, the E or Z isomer?
What is the half-life of a compound if 85 percent of a given sample of the compound decomposes in 45 min? Assume first-order kinetics.
What are the concentrations of all species and the pH of a buffer solution that is 0.30M NH3 and 0.3 0M NH4Br? For NH3 Kb = 1.8 X 10-5.
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
butanoic acid and 0.01 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO- to be 500 pm.
A gaseous mixture of O2 and N2 contains 40.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 405mmhg
What mass of silver is needed to absorb 50.0 cal of heat if the tempature of the sample rises from 24 c to 36.4 c Specific heat of silver
The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.
Suppose 0.0864 mol of Br_2_ is placed in a 1.44 L flask and heated to constant temperature at which the halogen partially dissociates to atoms
Is always a metal. Is called a catalyst. The magnesium acts as a reducing agent. How many electrons does each magnesium atom lose? Which family of elements in the periodic table contains the most powerful oxidizing agents?
Develop a crystal field splitting diagram for the following geometries by considering the crystal field generated by the ligands interacting with the d orbitals on the metal (ML2).
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