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what is the pH of an aqueous solution composed of 0.64 M NH4+ and 0.20 M NH3? (Ka of NH4+= 5.6 x 10^-10)
On the previous problem set, you examined both radial wavefunctions and radial distribution functions. Do the two functions display radial nodes at the same places?
At 25 °C, the equilibrium partial pressures for the following reaction were found to be PA = 1.40 atm, PB = 8.90 atm, PC = 5.10 atm, and PD = 2.50 atm.
Write net Bronsted equations and determine the equilibrium constants for the acid-base reactions that occur when aqueous solutions of the following are mixed.
The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of copper (8.95 g/cm3) and its molar mass (63.55 g/mol) to calculate an approximate atomic radius for copper.
A patient weighs 146 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25.0 mg of drug per mL of solution.
3.60 bar of NO2 (g) is initially placed in a 1.00 L container. At equilibrium, the total pressure is found to be 4.4 bar. What is the value of Kp under these conditions?
Sterling Silver is 92.5% silver by mass. How many lbs of silver are there is a 45.0 Mg piece of sterling silver?
Ozonolysis of C followed by treatment with Zn and water gives CH3CHO and compound D (C9H10O). The proton NMR spectrum of compound D is given below. Treatment of compound D with ethyl magnesium bromide yields A. Draw the structures of compounds A, ..
How much potassium oxalate can be added to 158.0 mL of 0.35 M [Cu(NH3)4]Cl2 before a precipitate of CuC2O4 begins to form?
How would you figure out the hybridization of the nitrogen in HNO3? I know the steric number is 4 so wouldn't it be sp3
In a titration experiment, a 12.5 mL sample of 0.0500 M KOH neutralized 14.7 mL of HNO3 solution. Calculate the molarity of the HNO3 solution.
what fraction of the radioactivity will appear as CO2 during the first 2 turns of the TCA cycle? Draw the structure of OAA and indicate its labeling pattern after the second turn of the TCA cycle.
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