Sealed tubes of a mixture of NO2 and N2O4 gas are placed in ice water and in boiling water, and an instant change in the equilibrium system is demonstrated, according to Le Chatelier’s Principle.
The ability of a buffer to resist changes in pH is colorfully shown by adding strong acid and base to water and buffer solution with universal indicator.
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How it Works
A buffer solution contains both a weak acid and a weak base in...
Le Chatelier’s principle is demonstrated by color changes that result from the addition of solid chemicals to the iron (III) thiocyanate equilibrium system.
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Link to Equilibrium of Iron (III) Thiocyanate video can be found here https:/...
The bulk modulus of water is about 2.2 x 109 Pa, which means that a change of 1 N/m2 of external pressure on the liquid is able to change a given volume of it by a factor of 4.5 x 10-10 (for comparison, the same pressure change would produce...
An object does not need to float in order to experience the buoyant force.
In this example we see a cup of water at rest on a pan balance. When the demonstrator pushes a finger down into the liquid, the buoyant force of the liquid pushes up on...
Objects with a density lower than the fluid that they are submerged in will float; objects with a greater density will sink. This is shown using a brass ball and ping-pong ball of equal size, and a sea of beans.
