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The OTC antihistamine chlorpheniramine maleate is a cationic acid (positive charged) 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
It requires 251 J to melt 2.22 g of sodium metal at its normal melting point of 98°C. Calculate the molar heat of fusion of sodium.
A mixture contains both potassium phosphate and potassium chloride. What is the percentage of potassium phosphate in this mixture if reaction of 0.401g of this mixture with excess copper (II) chloride yields 0.213g of copper (II) phosphate?
Which of the following statements are correct concerning the comparison of the physical properties of pentane and diethyl ether
If 3.00 g of (NH4)2SO4 is dissolved in enough water to form 200. mL of solution, what is the molarity of the solution?
Calculate the pH of the solution that results from adding 28.0ml of 0.100M NaOH to 50.00 mL of a 0.0500 M solution of hydrochloric acid
Density and Identity, The mass of 5.00 mL carbon tetrachloride is 7.97g. What is the density of the carbon tetrachloride?
0.60 g of hydrogen chloride (HCl) is dissolved in water to make7 L of solution. What is the pH of the resulting hydrochloric acid solution.
What is the maximum wavelength of light capable of removing an electron from a hydrogen atom in the energy states characterized
Formic acid, HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas
When you have two primary or two secondary alcohols on the same molecule, will both undergo oxidation or just one?
How many grams of chromium metal can be formed if a 0.500 amp current is passed through a solution of Cr3+ for a period of 45.0
Calculate the pH during the titration of 34.5 mL of 0.507 M triethylamine, (C2H5)3N with 0.148 M HCl after 13.0 mL of the acid have been added. Kb of triethylamine = 5.2 x 10-4.
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