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Examine the IR spectrum of aspirin on pp. 572. Several significant signals have been identified on the spectrum. Assign these signals to corresponding functional groups in the molecule of aspirin. Explain your rationale clearly.
Calculate the equilibrium constant, Ke, for the reaction assuming the concentrations for reactants and products are the following
a pound of coffee beans yields 70 cups of coffee (4cups=1qt) how many milliliters of coffee can be obtained from 1 g of coffee beans
Explain qualitatively how the following would change the calculated surface concentration of SO2 assuming a gaussian plume from a smoke stack that follows the gaussian equation for the concentration of SO2
Prepare the molecular formula for given compounds and determine the amount of molecules present and write the molecular formula and determine how many grams of each you have
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000-mL solution. Calculate the molarity of the HCl solution, the [H3O+], and the pH. For a strong acid such as HCI, the [H3O+] is the same as the molarity of the HCl solution.
12.0 moles of gas are in a 5.00 L tank at 23.9 C. Calculate the difference in pressure between methane and an ideal gas under these conditions.
The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4) a monoprotic acid with Ka = 3.3 10-4 at 25°C. What is the pH of a solution obtained by dissolving two extra-strength aspirin tablet
Consider the combustion of ammonia: 4 NH3(g) + 3 O2(g) 2 N2(g) + 6 H2O(g). If N2 is produced at the rate of 0.63 mol/s, what is the rate of consumption of NH3?
The concentration of an enzyme within a cell is extremely low realtive to other material present, yet functions effectively in its metabolic rate. How can enzyme function and never seem to run out?
the rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 305K and 315 K. What must the activation energy be for the rate constant to double as described?
a sample of gas occupies 328 mL at 20 degrees C. What is its volume when the temperature is increased to 45 degrees C.
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