5. What is the conjugate acid of NH 3 ? [A] NH 2 + [B] NH 4 OH [C] NH 3 + [D] NH

ID: 950331 • Letter: 5

Question

5. What is the conjugate acid of NH3?

[A] NH2+ [B] NH4OH [C] NH3+ [D] NH3 [E] NH4+

6. The conjugate base of NH2- is ________

[A] OH- [B] NOH [C] NH3 [D] H3O+ [E] NH2-

7. What is the conjugate acid of CO32-?

[A] HCO22- [B] H2CO3 [C] HCO3- [D] CO22- [E] none of the above

8. A Bronsted-Lowry base is defined as a substance that ________

[A] increases [H+] when placed in H2O

[B] acts as a proton acceptor

[C] decreases [H+] when placed in H2O

[D] acts as a proton donor

[E] increases [OH-] when placed in H2O

9. A Bronsted-Lowry acid is defined as a substance that ________

[A] acts as a proton donor

[B] increases [OH-] when placed in H2O

[C] increases Ka when placed in H2O

[D] decreases [H+] when placed in H2O

[E] acts as a proton acceptor

5)   [E] NH4+

6)   [A] OH-

7)   [C] HCO3-

8)   [B] acts as a proton acceptor

9)   [A] acts as a proton donor

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