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A typical aspirin tablet contains 324mg of aspirin (aceytlsalicyclic), a momoprotic acid having Ka= 3.0*10^-4. If you dissolve 4 aspirin tablets in a 300ml glass of water, what is the pH of the solution and the percent dissociation?
how much energy is liberated when 366 g of mercury (c=0.139j/g degrees celsius)cools from 77.0 C to 12.0 degrees celsius?
What is the hydroxide-ion concentration of a 0.190 M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1 = 5.6x10-2 and Ka2 = 5.1x10-5.
How many grams of magnesium metal will react completely with 4.8 liters of 5.0 M HCl?
A particular brand of gasoline has a density of 0.737 g/mL. How many grams of this gasoline would fill a 15.6 gal tank?
Phosphorus-32 has a half-life of 14.0 days. Starting with 2.00g of P^32, how many grams will remain after 70.0 days? Express your answer numerically in grams.
What is the hybridization of the nitrogen atom in sulfathiazole? Assuming that the sulfur atom is sp2-hybridized, how many -electrons are there in the sulfathiazole ring?
What is the pH at 25 deg celcius of the solution obtained by dissolving a 5.00 grain tablet of aspirin in 0.500L of water? The tablet contains 5.00 grains or 0.325g of acetylsalicylic acid HC9H7O4. The acid is monoprotic and Ka for the acid is 3.3..
Consider the following heterogeneous equilibrium: CCl4(g) ñ C(s) + 2Cl2(g) . Kp = 0.80 atm for this reaction at some elevated temperature. Calculate the initial partial pressure of CCl4(g)
A photoelectron spectroscopy experiment is conducted in which light with a wavelength of 58.4 nm is directed at a sample of rubidium, resulting in the ejection of the electron
A sample of steam with a mass of 0.550grams and at a temperature of 100 degrees celcius condenses into an insulated container holding 4.30grams of water at 6.0 celcius
a sample of gas occupies a volume of 445 ml at a temperature of 274 k. at what temperature will this sample of gas
question you have 50 ml of a .10 m solution of iodine in carbon tetrachloride what would the final volume of this
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