Thermochemistry

Reaction of Hydrogen and Oxygen

[L | t+ | ★★★★]
Balloons of hydrogen, oxygen, and a mixture of the two gases are burned.

[In-Depth Description]

Two Scales Precision vs. Capacity

[S | t+ | ★★★]
Two weighing scales with different ranges and sensitivities, with video of pan and read-out to projection screen.

Reaction of Sodium and Water

[L | t+ | ★★★★]
Sodium undergoes a reaction with water.

[In-Depth Description]

Reaction of Magnesium and Air

[S | t | ★★★]
A magnesium ribbon is held with tongs and lit with a match or torch, making a bright flame that consumes the ribbon from the bottom up.

[In-Depth Description]

Reaction of Propane and Oxygen

[M | t+ | ★★★]
A oxy-propane torch is lit with just propane, and the flame examined, before oxygen is added, changing the flame character and temperature.

[In-Depth Description]

Hot and Cold Packs

[ S | t | ★★ ]
Ammonium nitrate instant cold packs, and calcium chloride instant hot packs, to distribute.

Specific Heat of Copper

[ S | t+ | ★★ ]
Copper is heated to 100°C and added to room temperature water in a calorimeter. Specific Heat calculated.

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Campus Location: Science Center B-08A | Tel: (617) 495-5824 | Email: scidemos-at-fas.harvard.edu