AP Chemistry - THOU SHALT NOT FORGET

Front

What is the volume occupied by one mole of an ideal gas at standard temperature and pressure (STP)?

Back

22.4 Liters.

Front

What happens to the equilibrium position of a reaction when the temperature is increased for an exothermic reaction?

Back

The equilibrium shifts to the left, decreasing the amount of products.

Front

Which molecule has the strongest intermolecular forces: CH4, C2H2, C4H8, or C8H14?

Back

C8H14 has the strongest intermolecular forces due to its larger size and greater surface area.

Front

What is the rate-determining step in a reaction mechanism?

Back

It is the slowest step that dictates the overall rate of the reaction.

Front

What defines isotopes of an element?

Back

Isotopes have the same number of protons but different numbers of neutrons.

Front

What is the effect of adding a catalyst to a chemical reaction?

Back

A catalyst speeds up the reaction without being consumed, but it does not change the equilibrium position.

Front

What is Le Chatelier's principle?

Back

If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.

Front

What is the difference between an endothermic and an exothermic reaction?

Back

Endothermic reactions absorb heat, while exothermic reactions release heat.

Front

What is the definition of a mole in chemistry?

Back

A mole is defined as 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

Front

What is the significance of the equilibrium constant (K)?

Back

The equilibrium constant expresses the ratio of the concentrations of products to reactants at equilibrium.