LIMITING REAGENT DEMONSTRATION

LIMITING REAGENT DEMONSTRATION
1. What is the reaction - taking place at the beginning of the room
2. What is the mole ratio of HCH 3 COOH and NaHCO 3
3. Draw an illustration below the table in each of the six balloon experiments.
Amount of
HCH 3 COOH
Amount of
NaHCO 3
TRIAL 1 TRIAL 2 TRIAL 3 TRIAL 4 TRIAL 5 TRIAL 6
10 mL 10 mL 10 mL 10 mL 10 mL 10 mL
0.18 g 0.35 g 0.52 g 0.70 g 1.00 g 1.70 g
4. Based on your observations, which reactant - baking soda or vinegar - was the
limiting reagent in each of the test tubes
Trial 1 Trial 2
Trial 3 Trial 4
Trial 5 Trial 6

CALCULATIONS
5. Household vinegar is 5% acetic acid by volume (MM = 60.06 g/mol). Let’s assume
that the density of vinegar is 1.00 g/mL (it’s close). How many moles of acetic
acid are contained in 10 mL of household vinegar. SHOW WORK. PRACTICE
DIMENSIONAL ANALYSIS!
6. Find the number of moles of NaHCO 3 (MM = 84.01 g/mol) contained in each of
the balloons. SHOW WORK. PRACTICE DIMENSIONAL ANALYSIS!
7. Consider your values in the calculations above and compare these to the
observations you made accompanying the demo. Do your calculations explain your
observations EXPLAIN!