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You are interested in isolating menthol from a mint leaf. You have pureed 12g of mint leaf and completed steam distillation using 35mL of water.
a. If a mint leaf is 12% methanol how much should be distilled?
b. What temperature should the distillation take place-approximately?
In most amines, the nitrogen atom is hybridized, with a pyramidal structure and bond angles close to 109 . In urea, both nitrogen atoms are found to be planar
Calculate the volume in liters occupied by 0.350 moles of propane gas at a pressure of 0.850 atmospheres
C3H8(g)+5O2(g)->3CO2(g)+4H2O If 465 mL of oxygen at STP is used in the reaction, what volume of CO2 measured at 37 degrees C and 0.973 atm, is produced?
Calculate how much you would obtain wiht 1 x 0.6 mL extraction. 3. Which method is more efficient.
Tf will be negative and so you must use negative Kf values. Either way, the freezing point of the solution should be lower than that of the pure solvent. Assuming 100% dissociation, Find the freezing and boiling points of 1.85 m Na2SO4(aq).
Determine what ventilation rate (minimum) in m3/hr will be essential to keep the carbon monoxide concentration in his garage from the dangerous level of 1600 ppmv? What is your answer in this case?
Organic Chemistry-In the mass spectrum of butylbenzene, the base peak occurs at m/z
Draw the major organic product formed when toluene reacts with nitric acid in the presence
A graduated cylinder contains 148 of water. A 17.0 piece of iron (density = 7.86 ) and a 19.0 piece of lead are added. What is the new water level in the cylinder?
How much heat is required to convert 25.0g of ethanol at 25 degrees C to the vapor phase at 78 degrees C?
A solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate?
provide reaction mechanisms for the formation of each of these byproducts and specify whether the mechanisms you write are SN1, SN2, E1, E2, or none of these. explain why you would expect bisulfate to be a good leaving group for substitution or eli..
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