Annice

** MAKING A BAKING SODA AND VINEGAR VOLCANO ** For Tasha and I's experiment, we well be trying to make a baking soda and vinegar volcano.The baking soda and vinegar volcano is a chemistry project you can use to simulate a real volcanic eruption, as an example of an acid-base reaction. The chemical reaction between baking soda and vinegar will produce carbon dioxide gas, which forms bubbles in the dishwashing detergent.


 * MATERIALS:**
 * 3 cups flour
 * 1 cup salt
 * 2 tablespoons cooking oil
 * empty 20-oz drink bottle
 * deep plate or a pan
 * gel food coloring
 * dishwashing detergent
 * baking soda (sodium bicorbonate)
 * vinegar (dilute acetic acid)

1. Make the Volcano dough by mixing together 3 cups of flour, 1 cup of salt, and 2 tablespoons of cooking oil. 2. Fill the empty 20-oz bottle almost to the top with hot tap water. 3. Add a squirt of dishwashing detergent and 2 tablespoons of baking soda. 4. Press the dough around the bottle so it takes the shape of a Volcano. Make sure to leave the opening of the bottle open. 5. To get the reaction, pour vinegar into the opening of the bottle and make observations of the reaction.
 * STEPS:**

"The baking soda and vinegar volcano erupts because of an acid-base reaction: baking soda (sodium bicarbonate) + vinegar (acetic acid) --> carbon dioxide + water + sodium ion + acetate ion where s = solid, l = liquid, g = gas, aq = aqueous or in solution
 * HOW DOES IT RELATE TO CHEMISTRY?**
 * NaHCO3(s) + CH3COOH(l) --> CO2(g) + H2O(l) + Na+(aq) + CH3COO-(aq)**

Breaking it down: NaHCO3 <--> Na+(aq) + HCO3-(aq) CH3COOH <--> H+(aq) + CH3COO-(aq) H+ + HCO3- <--> H2CO3 (carbonic acid) H2CO3 <--> H2O + CO2 Acetic acid (a weak acid) reacts with and neutralizes sodium bicarbonate (a base). The carbon dioxide that is given off is a gas. Carbon dioxide is responsible for the fizzing and bubbling during the 'eruption'. " (Anne Marie Helmenstine- chemistry.about.com) > ** To find more information, click [|here.] **