Preview - Stoichiometry - Creating A Fizzy Drink Part 1

Experiment 2

NaHCO3 (s)  +  CH3COOH (aq)  ----->  NaC2H3O2  (aq)  +   H2O (l)  +  CO2 (g)
bracket    bracket
Reactants   Products
  1. Record the mass of a 125 mL Erlenmeyer flask and record the mass of your balloon.
  2. Measure 20 mL of 1.0 M acetic acid (CH3COOH) in a 25 mL graduated cylinder. Pour this into the empty 125 mL Erlenmeyer flask.
  3. Place a weighing boat on your balance and zero it out.
  4. Measure out 0.6 g of baking soda (NaHCO3) in the weighing boat, then pour it carefully into your balloon.
  5. Place the baking soda balloon and the acetic acid flask on the balance. Subtract the mass of the flask and the balloon from the mass on your balance and record that mass. (This is the total mass of your reactants.)
  6. Carefully attach the balloon to the flask making sure not to empty any of the baking soda into the flask in the process!
  7. Once the balloon is secure on the flask, shake the baking soda into the flask so it reacts with the acetic acid. Wait until all of the material seems done reacting.
  8. Record any observations of what occurred during the chemical reaction below. Observations include describing what happened during the reaction and noting differences between the reactants and products.
  9. Record the total mass after the reaction by again subtracting the mass of the flask and the balloon from the mass on your balance. (This is the total mass of your products.)
  10. Dump the contents of the flask down the appropriate drain, rinse it out, and place it on the drying rack. Return the balloon to your instructor.

Questions

Please answer the questions below.

Record your data from Experiment 2: NaHCO3 (s) + CH3COOH (aq) → NaC2H3O2 (aq) + H2O (l) + CO2 (g)

Record your observations from Experiment 2: NaHCO3 (s) + CH3COOH (aq) → NaC2H3O2 (aq) + H2O (l) + CO2 (g)

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.