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The OTC antihistamine chlorpheniramine maleate is a cationic acid with an unionized conjugate base and a pKa of 9.4. Calculate the ratio of ionized to unionized drug forms that would exist in the plasma at physiological pH (7.4). What is the percent ionized to unionized?
Between 0 degrees Celsius and and 30 degrees Celsius, mercury has a specific heat of 0.138 J/g*C. If 200 J of heat are removed from 100 g of Hg at 20 degrees Celsius, what will the final temperature of the Hg be
At this temperature, calculate the number of moles of NO2(g) that must be added to 2.76 mol of SO2(g) in order to form 1.20 mol of SO3(g) at equilibrium.
A mixture of gases contains 10.20g of N2 , 1.80g of H2, and 8.15 of NH3 . The total pressure of the mixture is 1.90atm. What is the partial pressure of N2? What is the partial pressure of H2. What is the partial pressure of NH3.
A standard solution of sodium hydroxide has a molar concentration of 0.128M. You use 25.00ml of a solution of hydrochloric acid and this requires 32.75ml of the standardized sodium hydroxide solution to reach the endpoint. WHAT IS THE molar concen..
Draw an absorption spectrum of leucoindigo. What color is absorbed by leucoindigo? Draw a simple energy level diagram of leucoindigo. Calculate the energy difference between energy levels.
A 3.18 L sample of hydrogen chloride (HCl) gas at 1.64 atm and 31 degrees C is completely disolved in 710 mL of water to form hydrochloric acid solution. Calculate the molarity of the solution. Assume no change in volume
Consider H2, D2, and H20, treated as ideal gases at pressures of 1 atm and temperatures of 293.2 K.
The iron (55.847 g/mol) in a 700.0 mL sample of a natural water was determined by precipitation of the cation as hydrated Fe2O3. The precipitate was filtered
Calculate the mass of silver nitrate (in grams) in a 145 mL solution of 5.38 M AgNO3.
Ammonia(NH3) chemically reacts with oxygen gas (O2) to produce nitric oxide (NO)and water. What mass of ammonia is consumed by the reaction of 1.50g of oxygen gas
A mist is observed to form on the mirror at a temperature 40C. Calculate mass of water removed from the pulp (kg/min) and the volumetric flow rate of air entering the system.
Considering the likely HOMO and LUMO of L-serine methyl ester, what would be the most electrophilic atom and what would be the most nucleophilic atom
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