Why did the color inside the dialysis tube change

Reference no: EM13151451

We did an osmosis experiment where we put a dialysis bag containing a solution of starch + sugar in a beaker containing water + iodine.

After 90 minutes, the color inside the tube went from white to grayish blue (iodine moved in).

After 90 minutes the color of the water didn't change - remained yellow.

There was a trace of glucose in the water at the end of the experiment, and the dialysis tube seemed to "puff out" - like water had entered it..

a. Why did the color inside the dialysis tube change?
b. Why did some of the glucose leave the dialysis bag?
c. Why didn't the water change color?
d. Why did the volume of wtter in the dialysis bag seem to increase?

Reference no: EM13151451

Questions Cloud

Effective interest method of accounting for bonds : Which of the following statements regarding the effective interest method of accounting for bonds characteristics is false?

What will its new price have to be : If the company will sell the number of units obtained in part d, and wants to maintain the same level of profit as last year, what will its new price have to be?

What is the ph : a 25 mL sample of .150 M hypochlorous acid is titrated with a .15 M NaOH solution. What is the pH after 26 mL of base is added? The Ka of hypochlorous acid is 3.0x10^8

Find how often families visit in a season : How long they stay on each visit. How would you suggest taking this sample? What type of sampling have you described?

Why did the color inside the dialysis tube change : We did an osmosis experiment where we put a dialysis bag containing a solution of starch + sugar in a beaker containing water + iodine.

Aerosol cans carry clear warnings against incineration : Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755mm Hg and a temperature of 25 C

Basics of minimum lease payments : The minimum lease payments were determined to have a present value of $227,448 at an effective interest rate of 10%. With respect to this capitalized lease, for 2011 Ogleby should record:

How is water replaced at the macroscopic level : Water is constantly lost from the body via sweat, secretions and other processes. These secretions include saliva and enzyme solutions secreted into food as it's processed in the GI tract.

At what level of output does average cost reach low point : Derive the long-run average cost and marginal cost equations, and plot them on a graph. At what level of output does average cost reach its low point?

User Account

All Pages