Water+to+Wine


 * Demonstration:** Water to Wine

6 wine glasses 150 ml of distilled water 10 drops of 1 m naoh 3 squirts of 1% phenolphthalein 6 squirts of 6m hcl One small scoop of nahco3 (s) – (salt) 3 drops of 1m agno3 (aq)
 * Materials: **

1. Set up glasses in a row at the front of the demonstration table. If using glasses, the beverages will be in the following order: wine, water, 7-Up, and milk. 2. Prepare the glasses/beakers as follows: Glass 1- Wine bottle 150 mL of distilled water and 10 drops 0.1 M NaOH solution. Glass 2 – Wine, 3 squirts 1% phenolphthalein (ADD JUST BEFORE START OF DEMO) Glass 3– Water, 6 squirts 6M HCl Glass 4 – 7-Up, small scoop of NaHCO3 (s) - Glass 5 – Milk, 3 Drops 1M AgNO3 (aq) 3. Hold up the wine bottle and pour it into the wine glass. The phenolphthalein will turn pink in the basic environment (wine). 4. Pour contents of glass 1 into glass 2. The pink color will vanish, and the solution will return to colorless (water). Phenolphthalein is colorless in an acidic solution. 5. Pour the contents of glass 2 into glass 3. The acidic solution will react with the sodium bicarbonate to produce carbon dioxide bubbles in an acidic solution (7-Up). 6. Allow the bubbling to stop completely, then pour the contents of glass 3 into glass 4. The clear solution will develop a cloudy white precipitate (milk). The precipitate is formed when the barium ions in the barium nitrate solution react with the sulfate ions from the sulfuric acid to form barium sulfate, which is insoluble in water.
 * Procedure: **

(to say during the demonstration, when pouring the solution from glass to glass)
 * Rap: **

//I’ve got a rappin’ demo for you to see// //And it has to do with Chemistry,// //So all you people listen up,// //And cast your eyes upon this cup!//

//Chemistry is really fine,// //I can turn this water into wine,// //And if you aren’t impressed my friend,// //I’ll turn this wine into water once again.//

//And if you don’t like what’s in my cup,// //I’ll turn this water into Seven-Up.// //Or if you want a drink that’s smooth as silk,// //I’ll turn this Seven-Up into milk.//

//Now the thing that makes this demo great,// //Are the acids, bases, and precipitates,// //So now you’ve seen and you understand,// //I think this demo deserves a hand!//

Glass 2 – NaOH + phenolphthalein --> pink solution The phenolphthalein turns pink in the basic environment (wine). Glass 3 - NaOH + H2SO4 (in excess) --> H2O + Na2SO4 (colorless solution) The pink color will disappear, and the solution will go back to colorless (water). Phenolphthalein is colorless in an acidic solution. Glass 4 - HCO3- (aq) + H+ (aq) --> H2CO3(aq) --> CO2(g) + H2O (l) (fizzing) 2NaHCO3(aq) + H2SO4(aq) --> Na2SO4(aq) + 2H2O(l) + 2CO2(g) The acidic solution reacts with the sodium bicarbonate to produce carbon dioxide bubbles in an acidic solution (7-Up). Glass 5 - Ba2+(aq) + SO4 2-(aq) --> BaSO4(s) (white precipitate) The clear solution develops a cloudy white precipitate (milk). The precipitate is formed when the barium ions in the barium nitrate solution react with the sulfate ions from the sulfuric acid to form barium sulfate, which is insoluble in water.
 * Reactions: **

In this demonstration, it is clear that chemical changes have taken place. Indicators show that the chemical reaction has taken place by changing the color of the solution. The solutions in this experiment are acids and bases. When you change the amount of an acid or of a base in a solution, the color can change quickly, which makes it seem like different drinks are appearing. Another way that a solution can look different is when reactions make precipitates. The precipitates are actually solids that are made during the reaction that takes place. In the first glass, I put 10 drops of sodium hydroxide and water. In the second glass, it was time for the indicator to be put in.The indicator that was used in this experiment was phenolphthalein. I put 3 squirts of this into a glass to make the “wine.” The indicator allowed the clear water to turn into pink. In the third glass, I put 6 squirts of Hydrochloric acid to get the clear color of water back. In the fourth glass I put a small scoop of baking soda, which is a base. The acid from the previous glass reacted with the baking soda to make it fizz, which looks like 7-up. Finally, for the last glass, I added in silver nitrate to make it turn into a cloudy, white precipitate. This gave the illusion of milk.
 * Explanation: **

** Practical Applications: ** Precipitates, acids, and bases can be found in your everyday life. Alka-Seltzer (the stuff you use when you have a stomach ache) is an example of a precipitate reaction. The bits at the bottom of the glass after the rest has started to fizz are the precipitates. Precipitates are also present in carbonated drinks and can be seen when these drinks start to fizz. One property of acids is that they taste sour. If you enjoy eating fruits, citric acid can be responsible for the sour taste. These can be tasted in lemons, oranges, limes, and grapefruits. One property of bases is that they feel slippery. Therefore, many bases are found in cleaning agents, bleaches, toothpastes, and soaps.

**Pictures & Video:** Coming soon, still need to film at school! (No pictures of the experiment online) Stevens, Jen. “Wine to Water.” Union Education. 2007. CHM 561 Chemistry Demonstrations. 14 Jan. 2010. .
 * Work Cited:**

--Angela L.