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Worksheet: Conjugate Acid-Base Pairs

Q1:

What is the conjugate base of H N 5 2 + ?

  • A H N 6 2 2 +
  • B H N 2 2
  • C H N 4 2

Q2:

What is the conjugate acid of H C O 3 ?

  • A C O 2
  • B C O 3 2
  • C H C O 2 3

Q3:

What is the conjugate base of H O 2 2 ?

  • A H O 3 +
  • B H O 2
  • C H O 3 2 +
  • D H O 2

Q4:

In the equation

N H 3 is the conjugate base. What is the missing term?

  • A N H 2 4
  • B N H 3
  • C N H 2
  • D N H + 4

Q5:

What is the conjugate base of H S O 4 ?

  • A S O 2
  • B H S O 2 4
  • C H S 2
  • D S O 4 2

Q6:

In the reaction

which species is a Brønsted-Lowry acid?

  • A H S
  • B N H 2
  • C N H 3
  • D H S 2

which species is the conjugate base of a Brønsted-Lowry acid?

  • A N H 3
  • B N H 2
  • C H S 2
  • D H S

which species is a Brønsted-Lowry base?

  • A N H 2
  • B H S 2
  • C H S
  • D N H 3

which species is the conjugate acid of a Brønsted-Lowry base?

  • A N H 3
  • B H S
  • C H S 2
  • D N H 2

Q7:

What is the conjugate acid of N H 3 ?

  • A N H 2 2
  • B N H 2
  • C H O 3 +
  • D N H 4 +
  • E O H

Q8:

What is the conjugate base of O H ?

  • A H +
  • B H O 2
  • C H O 3 +
  • D O 2

Q9:

What is the conjugate base of H S ?

  • A S O 2
  • B H S 2
  • C S 2

Q10:

In the equation

H P O 2 4 is the conjugate acid. What is the missing term?

  • A P O 4 3
  • B H P O 2 4
  • C H P O 2 3 +
  • D H P O 4 2
  • E H P O 3 4

Q11:

What is the conjugate acid of H N 5 2 + ?

  • A H N 4 2
  • B H N 5 2
  • C H N 6 2 +
  • D H N 6 2 2 +
  • E H N 4 2 +

Q12:

What is the conjugate base of H C O 3 ?

  • A C O 2
  • B H C O 2 3
  • C C O 3 2

Q13:

In the reaction

which species is a Brønsted-Lowry acid?

  • A H C N
  • B C N
  • C O H
  • D H O 2

which species is the conjugate base of a Brønsted-Lowry acid?

  • A H C N
  • B H O 2
  • C C N
  • D O H

which species is a Brønsted-Lowry base?

  • A C N
  • B H O 2
  • C H C N
  • D O H

which species is the conjugate acid of a Brønsted-Lowry base?

  • A H C N
  • B O H
  • C C N
  • D H O 2

Q14:

What is the conjugate base of N H 3 ?

  • A N H 2 2
  • B N H 4 +
  • C N H 2

Q15:

In the reaction

Which species is a Brønsted-Lowry acid?

  • A H O 3 +
  • B H O 2
  • C N O 3
  • D H N O 3

Which species is the conjugate base of a Brønsted-Lowry acid?

  • A H O 3 +
  • B H O 2
  • C H N O 3
  • D N O 3

Which species is a Brønsted-Lowry base?

  • A H O 2
  • B H N O 3
  • C H O 3 +
  • D N O 3

Which species is the conjugate acid of a Brønsted-Lowry base?

  • A H O 3 +
  • B N O 3
  • C H N O 3
  • D H O 2

Q16:

What is the conjugate acid of H S O 4 ?

  • A H S 2
  • B S O 2
  • C S O 4 2
  • D H S O 2 4

Q17:

What is the conjugate base of H O 2 ?

  • A H O 3 +
  • B H +
  • C O 2
  • D O H

Q18:

What is the conjugate acid of H O 2 2 ?

  • A H O 3 +
  • B H O 2
  • C H O 2
  • D H O 3 2 +

Q19:

In the reaction

which species is a Brønsted-Lowry acid?

  • A O H
  • B O 2
  • C H O 2

which species is the conjugate base of a Brønsted-Lowry acid?

  • A O H
  • B H O 2
  • C O 2

which species is a Brønsted-Lowry base?

  • A H O 2
  • B O H
  • C O 2

which species is the conjugate acid of a Brønsted-Lowry base?

  • A O H
  • B O 2
  • C H O 2