Login or Register

800.334.5551 Live Chat (offline)

Carolina Chemonstrations®: Balloon Stoichiometry Kit

Item # 840366 Exclusive

Bring some clarity to the topic of limiting and excess reagents with this demonstration that’s both quick and memorable. Students watch balloons fill with carbon dioxide gas from the reaction of sodium bicarbonate and hydrochloric acid. The acid and base will vary between limiting and excess in 3 flasks, resulting in differently sized balloons and a pH indicator color change in the solution. Kit materials are sufficient for the demo to be performed 4 times.

Price

$24.50

In stock and available to ship.

A visual exploration of limiting reagents

Bring some clarity to the topic of limiting and excess reagents with this demonstration that’s both quick and memorable. Students watch balloons fill with carbon dioxide gas from the reaction of sodium bicarbonate and hydrochloric acid. The acid and base will vary between limiting and excess in 3 flasks, resulting in differently sized balloons and a pH indicator color change in the solution. Students will write a balanced equation for the reaction occurring in each flask and identify limiting reagents based on the mole ratios of reactants and products. Examples of real-world applications of stoichiometry give the demo context, while students’ particle-level explanations demonstrate their grasp of the underlying concepts. This demo requires approximately 20 min, and materials are sufficient for the demo to be performed 4 times.

   This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. For substitution suggestions, please call us at 800.334.5551 (8am to 8pm, ET, Monday-Friday).

  • WARNING: CHOKING HAZARD - Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.
  • This item is only available from Carolina Biological Supply Company.
  • Limited Qty: Corrosive - This product is/contains a limited quantity of a DOT regulated hazardous material. This item will not incur a hazmat fee when shipped by ground. Orders shipping to HI and AK are subject to review and may incur additional shipping charges.
  • This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. Visit our Login & Registration page to learn how to create a Login and link it to an approved school or business account.
 
Components Qty Included?
1 M Hydrochloric Acid, 500 mL 1 Included
Bromphenol Blue, 1%, 30 mL 1 Included
Sodium Bicarbonate, 227 g 1 Included
Balloons 20 Included
Funnel 1 Included
Plastic Scoop 1 Included
Craft Stick 1 Included
Digital Resource Card 1 Included
Teacher's Manual with Reproducible Student Guide 1 Included
Beaker, 100 or 250 mL 1 Needed, Not Included
Erlenmeyer Flasks, 250 mL 1 Needed, Not Included
Graduated Cylinders, 50 mL 1 Needed, Not Included
Graduated Cylinders, 100 mL 1 Needed, Not Included
Marker Needed, Not Included
Labeling Tape Needed, Not Included
Distilled Water Needed, Not Included
Carolina Biological Supply

© Carolina Biological Supply Company

2700 York Road, Burlington, NC 27215-3398 • 800.334.5551