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Chemical equilibria – Lab practical

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  2. Chemical equilibria – Lab practical

Chemical equilibria – Lab practical

August 1, 2022Chemistry

What is the purpose of chemical equilibrium lab?

Aim: The aim of the lab “Chemical Equilibrium” is to observe the effects of changes in concentrations of products and reactants on the position of the equilibrium of given chemical reactions.

What is equilibrium lab?


Quote from video: If the reaction has a large equilibrium constant that means that when the reaction has reached equilibrium. There's a lot more product relative to the amount of reactants.

What factors affect chemical equilibrium lab?

These factors include a change in temperature, pressure, reactant concentration, and product concentration. When any of these factors are changed, the equilibrium point of the reaction will move and the concentration of products and reactants in the system at the new equilibrium point will be different.

What is the purpose of the equilibrium experiment?

To observe the effect on equilibrium of adding or removing products and reactants. To predict the direction in which the equilibrium shifts upon a change in concentration of one of the components. To determine the thermicity of a reaction based on equilibrium shifts.

How is equilibrium used in everyday life?

An example of equilibrium in everyday life is a book on a table at rest. Here the weight of the book and the reaction force exerted by the table on the book cancel each other thus keeping the book in static equilibrium.

What is the conclusion of Le Chatelier’s principle?

Le Chatelier’s principle is that: If you change the concentration of a reactant then the position of the equilibrium will shift to counteract that change. If you change the temperature of the reaction the equilibrium will shift to counteract that change.

What is an example of equilibrium?

Some everyday examples of equilibrium include: a car at rest at a stop sign, a car moving at a constant speed, two people balancing on a see-saw, two objects at equal temperature, two objects with the same charge density and the population of a species staying the same.

What is the purpose of Le Chatelier’s principle?

Le Châtelier’s principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium.

What color is the solution at equilibrium?

The reaction is in equilibrium when there is 1 dm3 of A with concentration 1 M and 0.5 dm3 of B with concentration 1 M, such that KC=0.5 and the solution is orange (due to the equal parts of red and yellow).

What are the 4 factors that affect equilibrium?

The temperature, pressure, and concentration of the system are all factors that affect equilibrium. When one of these factors changes, the equilibrium of the system is disrupted, and the system readjusts itself until it returns to equilibrium.

What are the 3 factors that affect equilibrium?

Three types of stresses can alter the composition of an equilibrium system: adding or removing reactants or products, changing the total pressure or volume, and changing the temperature of the system.

What are the types of chemical equilibrium?

There are two types of chemical equilibrium:

  • Homogeneous Equilibrium.
  • Heterogeneous Equilibrium.


What is a real life example of chemical equilibrium?

There are many examples of chemical equilibrium all around you. One example is a bottle of fizzy cooldrink. In the bottle there is carbon dioxide (CO2) dissolved in the liquid. There is also CO2 gas in the space between the liquid and the cap.

What are the applications of chemical equilibrium?

The main application of Chemical Equilibria in industrial process is to maximise the desired product concentration by minimising the leftover reactants.

What are the 3 types of equilibrium?

Types of Equilibrium.

  • Stable Equilibrium.
  • Unstable Equilibrium.
  • Neutral Equilibrium.


What is the purpose of Le Chatelier’s principle?

Le Châtelier’s principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium.

How do you investigate equilibrium?

Quote from video: And we're adding.

Which statement is true about a chemical reaction at equilibrium?

A chemical equilibrium is a state of balance in a reaction where the forward and reverse reaction speed is equal and the concentrations of the products and reactants remain unchanged.

How do you test for Le Chatelier’s principle?

Quote from video: Next we'll add hydrochloric acid HCl to the second test tube notice that the color in the test tube turns from blue to yellow now the third test tube will have NaOH sodium hydroxide added to it.

What color is the solution at equilibrium?

The reaction is in equilibrium when there is 1 dm3 of A with concentration 1 M and 0.5 dm3 of B with concentration 1 M, such that KC=0.5 and the solution is orange (due to the equal parts of red and yellow).

How does color change affect equilibrium?

If the system gets darker red in color, then the equilibrium must be shifting to the right (toward producing more of the colored product). If the color of the system gets fainter (or disappears altogether), the equilibrium must be shifting toward the left (toward the colorless components).

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