Understanding Conjugate Acids and Bases

What is a conjugate acid?

• A conjugate acid is a neutral species that does not participate in reactions.

• A conjugate acid is formed when an acid loses a proton.

• A conjugate acid is the species formed when a base accepts a proton.

• A conjugate acid is a base that donates a proton.

Which of the following is a conjugate base of HCl?

• H2

• Cl-

• NaCl

• H2O

How do you calculate normality from molarity?

• N = M × n

• N = M - n

• N = M / n

• N = M + n

What is the relationship between pH and normality?

• pH is inversely related to normality for strong acids and bases.

• pH is directly proportional to normality for all solutions.

• Normality is a measure of acidity that does not affect pH.

• pH and normality are unrelated concepts in chemistry.

What is the conjugate acid of NH3?

• NH2-

• NH4+

• NH3+

• N2H4

Identify the conjugate base of H2SO4.

• HSO4-

• H2SO4

• SO4^2-

• H3SO4+

How is normality different from molarity?

• Normality measures concentration in grams per liter.

• Molarity is used for gases, while normality is for liquids.

• Normality is always equal to molarity in solutions.

• Normality is different from molarity in that it measures equivalents per liter, while molarity measures moles per liter.

What happens to the pH during an acid-base neutralization?

• The pH moves towards neutral (around 7).

• The pH decreases significantly below 7.

• The pH increases to above 14.

• The pH remains constant regardless of the reaction.

What is the conjugate base of H2O?

• H2O2

• H3O+

• OH-

• O2-

Calculate the normality of a solution containing 0.5 moles of H2SO4 in 1 liter of solution.

• 0.5 N

• 2 N

• 0.25 N

• 1 N