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Carolina ChemKits®: Advanced Stoichiometry Value Kit

Item # 840724 Exclusive

Introduce students to the method of continuous variation to determine molar ratios. Students vary the amount of reactants in an exothermic reaction and measure the resultant temperature change. Pooled class data is used to investigate how varying reactant mole ratios affects temperature change. After constructing a Job’s plot of the data, students determine the correct molar ratios for a balanced equation. Value Kit materials equip 4 classes.

Price

$86.80

In stock and available to ship.

Bring your stoichiometry lesson to the next level with this activity that introduces students to the method of continuous variation to determine molar ratios. Students vary the amount of reactants in an exothermic reaction and measure the resultant temperature change. Pooled class data is used to investigate how varying reactant mole ratios affects temperature change. After constructing a Job's plot of the data, students determine the correct molar ratios for a balanced equation.

Students will:

  • Calculate the temperature change for an acid-base neutralization reaction
  • Prepare a graphical representation of class data and draw trend lines
  • Use the method of continuous variation to determine molar ratios in a chemical reaction

This activity requires 50 min to complete, and Value Kit materials are sufficient for 4 classes of 30 students working in groups of 3.

  • This item is only available from Carolina Biological Supply Company.
  • 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.

Product Families Featuring This Item:

 
Components Qty Included?
3 M Sodium Hydroxide, 500 mL 4 Included
Phenolphthalein, 1%, 15 mL 2 Included
Citric Acid, 500 g 1 Included
Foam Cups 100 Included
Lids 25 Included
Pipets 100 Included
Weigh Boats 4 Included
Digital Resource Instruction Card 1 Included
Teacher's Manual with Reproducible Student Guide 1 Included
Beakers, 250 mL 20 Needed, Not Included
Beakers, 400 mL 10 Needed, Not Included
Graduated Cylinders, 100 mL 10 Needed, Not Included
Calculators 10 Needed, Not Included
Permanent Markers 10 Needed, Not Included
Thermometers 10 Needed, Not Included
Wash Bottles with Distilled Water 10 Needed, Not Included
Volumetric Flask, 1 L 1 Needed, Not Included
Volumetric Flask, 500 mL 1 Needed, Not Included
Container, 3.5 L, for Prepared Citric Acid 1 Needed, Not Included
Container, 5 L, for Prepared Sodium Hydroxide 1 Needed, Not Included
Container, 8 L, for Prepared Sodium Hydroxide 1 Needed, Not Included
Long-Stem Funnel 1 Needed, Not Included
Balance 1 Needed, Not Included
Stir Bar 1 Needed, Not Included
Utility Knife 1 Needed, Not Included
Paper Towels Needed, Not Included
Waste Containers Needed, Not Included
Distilled Water, 8 L Needed, Not Included
 
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