Free Shipping on Orders Over $199
Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
With the Massing Gases: Avogadro’s Law Demonstration—ChemTopic™ Lab Activity, use Avogadro’s law determine the molar mass of several gases. Measure the masses of equal volumes of gases trapped inside syringes, and compare their mass ratios to calculate the molar mass. Available as part of The Gas Laws—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.
1-800-452-1261
