Electrochemcial Cell Demonstration Voltaic Cell: Zinc/Copper E° = 1.10 V

A standard Zinc/Copper Voltaic Cell: Zn(s) in 1.0 M zinc sulfate solution, Cu(s) in a 1.0 M copper(II) sulfate solution, salt bridge and voltmeter, E°cell = +1.10 Volts.
Zinc Copper Voltaic Cell Demo

Buffer Capacity

Acid and base added to buffers of various concentrations to show capacity and how it is affected.

Common Ion Effect

The addition of concentrated hydrochloric acid to a saturated solution of sodium chloride causes solid sodium chloride to precipitate out.

Cheeto Calorimetry

Place a burning Cheeto underneath a beaker of water. The burning Cheeto heats the water. The initial and final temperature of the water is measured and recorded. Temperature rise is monitored. The change in temperature is calculated. The heat gained by the water is calculated, q gained by water = mass of the water x specific heat of the water x ΔT. The heat given off by the Cheeto is calculated q loss + g gain = 0 q loss by Cheeto + q gain water = 0

Amonton's Law

The apparatus consists of a fixed volume metal sphere, which contains a gas, connected to a large pressure gauge. The pressure of the sample of gas varies directly as a function of temperature.
Amonton's Law Apparatus


© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group