Compute partition coefficient of caffeine

Reference no: EM13207050

(1) 1 g of caffeine is soluble in 47 mL of water, 10 mL of dichloromethane, and 370 mL of diethyl ether (at 25 °C).

(a) Calculate the solubility (in grams/100 mL) of caffeine in these three solvents.

(b) Calculate partition coefficient of caffeine between water and each of two organic solvents.

(2) Tea contains several different organic compounds, which have diverse physiological effects on our organism. Look up and write down the structural formula of the three compounds present in tea: theophylline, theobromine, and (-) epicatechin. For your own,

Reference no: EM13207050

Questions Cloud

What is the sum of each pair of opposite faces : When the given net is folded into a cube, what faces are opposite each other? What is the sum of each pair of opposite faces?

Compute the ground-level centerline concentration : The wind speed is 4.8 m/s on a slightly sunny morning and plume rise is 20 m. (a) Calculate the ground-level centerline concentration 2.0 km downwind from the stack. (b) Calculate the concentration at 100 m off the centerline at the same x distanc..

When new efficient manufacturing technology are available : A. Hardware, when new and more efficient manufacturing technology becomes available. What does this change affect Demand or supply In which direction does the curve shift Draw a graph and explain what will happen to the price and quantity

What is the fewest number of pieces : What is the fewest number of pieces you can receive in a fair exchange for 2 flats, 14 longs, and 12 units? What is the fewest number of pieces you can receive in a fair exchange for 1 flat, 9 longs, and 24 units?

Compute partition coefficient of caffeine : Calculate partition coefficient of caffeine between water and each of two organic solvents. (c) Can you use diethyl ether to extract caffeine from water? Why/why not.

Explain a market for meals in a school cafeteria : Consider a market for meals in a school cafeteria. Suppose that in this market only one seller (the school foodservice unit) can sell meals to an unlimited number of students. What is the price elasticity of demand at p=4 at that price

Presentation for service learning : Summarize the main purpose and points of the event. What was the speaker trying to communicate, explain, or express and what were the main ideas

Define what range of accelerating voltages : What range of accelerating voltages would be required to cover the mass range between 16 and 625, for singly charged ions, if the field strength is held constant?

Find at least three combinations of donuts and burritos : A consumer has a monthly budget of $100 for buying breakfast which he spends entirely on donuts (x) and breakfast burritos (y) from his favorite fast food restaurants. Donuts cost 50 cents each and Burritos cost $1 each.

User Account

All Pages