When 100 ml of an aqueous solution containing 1.0 g of caffeine is extracted with 10 ml of chloroform at room temperature, 0.5 g of caffeine is transferred to the chloroform layer. calculate the distribution coefficient of caffeine between chloroform and water at room temperature.

The distribution coefficient is simply the ratio of the concentrations of the solute in the two solvents.

In this case there is 0.5g of caffeine in 10 ml of chloroform and 0.5 g of caffeine in 100ml of water.

The ratio is 0.5/10 : 0.5/100 = 0.05 : 0.005 = 10 : 1

correct answer is 2800.

Step-by-step explanation:

You take the area of the square which is 20x20 = 400.

There is 5 squares 400x5 = 2000

There is 4 triangles--which is 1/2 the area of 1 square (In this case).

One triangle = 200

200x4 = 800

2000 + 800 = 2800