Nelson Death .Doc

Shania Day

Denicia Brown

Jocelyn Alford

Isaiah Etul

Jaylan Pierce

Kevin Orantes

Team #3

Chemistry 1-2 Honors

Mrs. Hale-Hanes

Date: 4 February 2016

Due Date: 4 February 2016

How to Fill a Balloon Lab

I. Introduction:

There is a shortage of Helium to fill balloons. Using our knowledge of Stoichiometry, we need to find another gas that is able to fill a balloon. Two ways that you can make Carbon Dioxide (CO2) is to mix NaHCO3, Sodium Bicarbonate (Baking Soda) + Acetic Acid or Sodium Bicarbonate + Citric acid. We chose to use 7.5 grams of Sodium Bicarbonate and 5.36 grams of Acetic acid. We chose to use the chemicals because the two reactants will produce Carbon Dioxide. Our balanced equation is: Sodium Bicarbonate + Acetic acid = Sodium Acetate + Carbon Dioxide+ Water- NaHCO3 + CH3COOH = C2H3NaO2 + H2O+ CO2.

II. Problem/Question:

How much Carbon Dioxide do we need to fill up a 2 liter sized balloon?

III. Hypothesis:

We need 2 liters of Carbon Dioxide to blow up a balloon using 7.5 grams of sodium bicarbonate and 5.36 grams of Acetic Acid.

IV. Procedure:

1. Write out the formula for the name of the reactants and products.

2. Balance the equation of the formula

3. Work out the stoichiometry backwards starting with the product to find the amount of reactants we need.

4. Measure out 7.5 grams of sodium bicarbonate and 5.36 grams of acetic acid(vinegar)

5. Add the acetic acid into the flask and put the baking soda into the balloon.

6. Quickly put the balloon onto the flask

7. Hold down the balloon and shake it a little if you want

8. Measure the volume of the balloon when blown up (find the volume of a sphere)

9. Record Results in the data table

V. Data and Observations

Balloon Observations

| Measure | Volume |

Trial 1 | 117 mm (L)60 mm (W) | 1.13 x 105 |

VI. Results:

Volume of a sphere = V=43πr3 = 43 π (30)3= 1.13 x 105

VII....