Water-Wine-Milk-Beer Demo
I have the directions for a "water-wine-milk-beer" demonstration. It is one that was given to me by another teacher. You may find it useful. The demonstration works as follows:
-
Begin with a tumbler containing "water". The solution is not really water.
Prepare ahead of time a glass 3/4 full of water. To this add 20 to 25 mL
of saturated sodium bicarbonate and 20% sodium carbonate solution. (pH =
9)
- Pour the "water" into a wine glass. The wine glass should contain a few drops of phenolphthalein indicator.
- Pour the "wine" into a second tumbler. The second tumbler should contain 10 mL of saturated barium chloride solution.
- Pour the "milk" into a beer mug. The beer mug should contain a very few crystals of sodium dichromate. Just prior to doing the demonstration, add 5 mL of concentrated hydrochloric acid.
I hope you find this useful,
Tiffany