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Chemistry

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Immanuel Cremin

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Cards in this guide (11)
What would speed up a reaction

Answer this question… Increasing the concentration of reactants

What are some of the most common acid and base indicators

Phenolphthalein

Methyl Orange

Litmus

Bromophenol Blue

Why bromophenol blue is blue color

At pH 3.0 it has blue colour

What happens to the reaction rate as the reactants get used up in a reaction

The rate of the reaction begins to decrease as reactants are used up

When water is added to a blue solution of copper sulfate the solution changes to a lighter shade of blue Is this an example of a chemical reaction

If the water being added is pure, and the solvent in the copper sulfate solution was water, then no, this should not result in a chemical reaction. The visual change is due to dilution of the solute

What does Le Chtelier's principle state

The Le Chtelier's principle states one thing. It is the dynamic equilibrium which is disturbed by changing the conditions and the position of equilibrium moves that makes a change.

What does stressing an equilibrium system mean how is stress applied

Stressing an equilibrium simply means that the physical properties in which already exists are balanced. Stress can be applied by either changing the pressure or the volume or temperature.

How does increasing pressure affect the reaction rate

For chemical reactions of gases increasing pressure increase the reaction rate.

What is the rate of a reaction that follows the rate law rate kAmBn where k 0.2 A3 M B3 M m1 n2

answer is 5.4 (mol/L)/s

How do I prepare bromophenol indicator solution

Dissolve 0,1 g bromophenol blue in 100 mL methanol.

If a change is made to a system in equilibrium the equilibrium will shift to oppose the change.

Yes, this is the principle of Le Chatelier.

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