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The following is a list of drugs. For this assignment, use any resources available to you to find the structures of these drugs and then identify the functional group or groups in each molecule that is significantly ionized (>0.1%) at physiological pH (7.4) and give an approximate pKa value for each functional group (+/- 1 pKa unit).
Atropine
For example, a functional group that exhibits a basic pKa of 4.4 is significantly ionized at pH 7.4 while a functional group that exhibits an acidic pKa of 10.4 is significantly ionized at pH 7.4 but those are the limiting pKa values for meeting the criteria.
According to the following reaction, how many grams of ethylene (C2H4) are required for the complete reaction of 23.8 grams of hydrogen gas?
Kunzite is a mineral containing lithium (Li) and has the empirical formula LiAlSi2O6. Calculate the proportion by mass of lithium in Kunzite.
Which one of the following materials can be classified as a semiconductor. B SiO2 Ag Pb GaN
Determine pH of a solution when 25.00 ml of 0.100 M HOAc is titrated with 0.100 M KOH. What is the pH at the equivalent point. (ka for HOAc = 1.80 x 10-5) HOAc + KOH ---- KOAc + H2O
How many grams of potassium nitrate are soluble in 100.0 g of water at 80degrees celcius?
What is stray light. How does it affect the performance of the spectrometer? Can one minimize it in the design of a spectrometer.
You have a box of volume 1.00 liter into which you inject 2.65g of NH3 at 600K. What will be the final concentrations of NH3, N2, and H2 after equilibrium is established
A steel contains 18% cementite and 82% ferrite at room temperature. Estimate the carbon content of the steel. Is the steel hypoeutectoid or hypereutectoid
For CO2 one of the major absorptions of IR radiation occurs at the wavenumber of 2350cm^-1. what is the energy corresponding to that IR photon
reaction does k decrease over time what about in a 0 and 1 st order reaction. In a second order reaction does the half life increase over time what about in a 0 and 1 st order reaction?
Lead(II) sulfide was once used in glazing earthenware. It will also react with hydrogen peroxide (H2O2)to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?
What mass of ammonium chloride should be added to 2.45L of a 0.145M NH3 in order to obtain a buffer with a pH of 9.45
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