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The solubility of acetanilide in your recrystallizing solvent is 5.0 mg per ml at 10 degrees celcius. a) Calculate the maximum percent recovery in this experiment, assuming a 15.0 ml recrystalizing solution is filtered at 10 degrees celcius. b) Calculate the percent recovery of the acetanilide produced in your experiement. c) How do your results compare to the maximum precent recovery?
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood.
Calculate the binding energy for Cf-253 if one atom of this nuclide has an atomic mass of 253.08417. Express your answer in units of picojoules/nucleus where 1 picojoule = 1x10-12 joule
Draw every stereoisomer for 1-bromo-2-chloro-1,2-difluorocyclopentane. Use wedge-and-dash bonds for the substituent groups, and be sure that they are drawn on the outside of the ring, adjacent to each other.
What is the lone pair?
In a reaction between pure acetic acid and sodium bicarbonate, 10.1 grams of sodium bicarbonate was added to 21.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
One gallon of gasoline in an automobiles engine produces on the average 9.50 kg of carbon dioxide. Calculate the annual production of carbon dioxide in kg if there are 40 million cars in the US and each car covers a diastase of 5000 miles at a con..
In a laboratory synthesis , a student begins with 5.00ml of acetic anhydride (density = 1.08 g / mL) and 2.08 of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin . Determine the limiting reactant , theoretical ..
The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions.
To convert this into a buffer having a pH of 9.3380, how many grams of KH2BO3 (M.W. 99.926) should be added to the solution?
The buffer has a concentration of 150 mMol ( 150 mM of KH2PO4 / 150 mM K2HPO4. The pKa of the drug ephedrine is 9.6. Will the drug have a negative, positive, or neutral?
a 97 gram solution of silver nitrate contains 21 grams of AgNO3. what is the percent by mass of silver nitrate in this solution?
For a 6.70kg of magnesium-lead alloy, is it possible to have the masses of primary (alpha symbol) and total (alpha symbol) of 4.23kg and 6kg respectively at 460°C(860°F)
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