Water+to+Wine+-+Angela+Wong

 ** WATER TO WINE DEMO ** Materials: · 5 glasses · 100mL of H20 · 0.1 M NaOH · 1% Phenolphthalein · 6M HCl · NaHCO3 (baking soda) · 1M AgNO3

Procedure:

1. Wash and prepare the 5 glasses in front of the room.

2. In each glass, put the chemicals in each designated glass in the following order: Glass 1 (water): 100mL of H20 and 1 squirt of .1 M NaOH Glass 2 (wine): 3 squirts of 1% Phenolphthalein Glass 3 (water): 4 squirts of 6M HCl Glass 4 (7-Up): one scoop of NaHCO3 Glass 5 (milk): 5 drops of 1M AgNO3


 * Make sure when putting the contents in the glasses that it is not visible for the audience to see.**

3. Hold up the Glass 1 and get ready to pure its contents into Glass 2. While repeating this action until Glass 5, begin reciting the following chemistry “rap” song:


 * // 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 the 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, the bases and precipitates. //**
 * // So now you’ve seen and you understand //**
 * // I think this demo deserves a hand! //**

Video: media type="youtube" key="ZABsICQ3Eis" height="344" width="425"

Explanation: From Glass 1 to 3, what is happening in terms of the chemistry is and acid and base reaction and the use of an indicator. In the Glass 1, the sodium hydroxide is the base; the phenolphthalein in the Glass 2 will turn pink to a dark red that will indicate that it is in a basic solution. From Glass 2 to 3, the hydrochloric acid will create a weaker base, in which the phenolphthalein will be colorless in the acidic solution.

Glass 1 to Glass 2: NaOH + phenolphthalein --> pink solution that indicates basic solution

In Glass 3, the “water” solution which really contains an acidic solution will be poured into Glass 4 which contains sodium bicarbonate. This chemical reaction will produce water, carbon dioxide, and a salt. This is also called carbonation. This is when carbon dioxide is dissolved into water or an aqueous solution and it starts to “fizz.”

Glass 3 to Glass 4:

HCl (aq) + NaHCO3 (aq) --> H20 (l) + CO2 (g) + NaCl (aq)

Another type of chemical reaction is occurring called precipitation. Precipitates are solids that are formed in a solution. When Glass 4 is then poured into Glass 5 containing silver nitrate, it forms a cloudy white precipitate. The silver ions in silver nitrate will react with the chlorine ions, forming silver chloride which is insoluble in water.

Glass 4 to 5: AgNO3 (aq) + NaCl (aq) --> NaNO3 (aq) + AgCl (s)

Cool Facts, History, Tragic Story, Everyday Occurrences:

1. Clogged pipes at home are examples of precipitation. The “high mineral” content in the water, also known as “hard” water, magnesium and calcium oxides precipitates within the pipeline.

2. Kidney stones are also precipitated products of chemical reactions. They are made up of calcium ions and oxalates. However, drinking enough water will increase the solubility of the precipitate.

3. Alka-Seltzer is an antacid which relieves heartburn, headaches, and balances extra stomach acid. The fizzing that occurs when dissolved in water is the precipitation.

Examples of Acids:

· Milk- lactic acid · Vinegar- acetic acid · Soda pop- carbonic acid

Example of Bases

· Alkaline batteries- potassium hydroxide · Drano- sodium hydroxide · Baking Soda- sodium hydroxide

Works Cited Anthony Carpi, Ph.D. "Acids and Bases: An Introduction," //Visionlearning// Vol. CHE-2 (2), 2003. Web. 18 Feb. 2010. <[]> = “Chemistry : Acids, Bases & Salts.” //Syvum.// Web. 18 Feb. 2010. < []> = De Leon, N. “Precipitation Reactions.” // Chemistry 101 Class Notes //. Web. 18 Feb. 2010. < [|http://www.iun.edu/~cpanhd/C101webnotes/chemical%20reactions/precipitation.html]> “Water to Wine to Water to Milk.” //Nipissingu.ca.// Science General. Web. 18 Feb 2010. < [] >.