Equilibrium + Acid/base review

Front

What is H3PO4 an example of?

Back

H3PO4 is an example of an acid.

Front

What happens when a system reaches equilibrium?

Back

At equilibrium, forward and backward reactions occur at the same rate.

Front

At what time does a reaction reach equilibrium?

Back

The reaction reaches equilibrium at time t2.

Front

How do you calculate the equilibrium constant (Kc)?

Back

Kc = [products]^[coefficients] / [reactants]^[coefficients].

Front

What does a Kc value greater than 1 indicate?

Back

A Kc value greater than 1 indicates that the equilibrium concentrations favor products.

Front

What is the balanced equation for the neutralization of H2SO4 with KOH?

Back

H2SO4 + 2KOH → K2SO4 + 2H2O.

Front

How many mL of 1.00 M H2SO4 is needed to neutralize 21.5 mL of 1.50 M KOH?

Back

16.1 mL of 1.00 M H2SO4 is needed.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a chemical reaction.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) in a chemical reaction.

Front

What is the significance of significant figures in calculations?

Back

Significant figures indicate the precision of a measurement and should be maintained in calculations.