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In a lab, 17.9 mL of methyl salicylate is hydrolyzed with 60 mL of 6 M NaOH. The resulting salt is acidified with 30 mL of 6 M HCl to prepare the crude salicylic acid. The crude sample is purified by recrystallization in 100 mL of 4:1 water-ethanol mixture. If the overall yield is 100%, how much pure salicylic acid can be synthesized (in g)? (Note: The density of methyl salicylate is 1.174 g/mL at room temperature. Keep three sig.figs. in your answer.)
a 54.0 g ice cube initially at 0degc is dropped into a styrofoam cup containing 375 g of water initially at 21.2degc.
The rotation of this solution increases overtime to +52.5 degrees. Calculate the percentage of the two forms of D-glucose at equilibrium.
suppose that you are the chief economic advisor to the president of the united states. you are asked to propose a
celcius of a solution prepared by dissolving 0.0550 mole of a sodium acetate in 1.00 L of 0.250 M acetic acid.
A package of alumnium foil contains 50 ft ^2 of foil, which weighs approximately 8.0 oz. Alumnium has density of 2.70 g/cm ^3. What is the approximate thickness of the foil in mm?
Kp for the reaction of SO2(g) with O2 to produce SO3(g) is 3 × 1024 . Calculate Kc for this equilibrium at 25ºC. (The relevant reaction is 2SO2(g) + O2(g) 2SO3(g).)
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
Write the equation for the formation of ethyl acetate, What is the purpose of sulfuric acid? What happens if water is removed from the reaction mixture.
Explain in term of CFSE, why high spin Cr2+ is a good reducing agent and low spin Mn2+ is a good oxidizing agent. Both ions are d4
the I2 sublimes and gasses iodine heptofluride forms 3.2x10^2 torr of T2 and 4.1 g of solid I2 are put in to a 2.5 L Container at 2.5x10^2 K and container is heated to 5.5 x 10^2 K A what is the final pressure in atms. what is the partial pressure..
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
Explain Copper (Cu) dissolves in nitric acid (HNO3), producing copper (II) nitrate, Cu (NO3)2, nitrogen dioxide (NO2) and H2O. Explain what mass of NO2 could possibly be produced by the reaction of 5.00g of Cu and 25.0 g of HNO3
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