SAT ABS Bronsted Lowry

8/13/2019 SAT ABS Bronsted Lowry

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1. In which reaction is water acting only as a proton

acceptor?

1) H2SO4(aq) + H2O ()HSO4(aq) + H3O

+(aq)

2) NH3(g) + H2O ()NH4+(aq) + OH

(aq)

3) CH3COO(aq) + H2O ()CH3COOH(aq) + OH

(aq)

4) H2O () + H2O (l)H3O () + OH(aq)

2. In the reaction:

NH3+ H2O *NH4++ OH

A conjugate acid-base pair is

1) NH3and H2O

2) NH3and OH

3) H2O and OH

4) H2O and NH4+

3. In the reaction:

NH3+ HClNH4++ Cl

The NH3acts as

1) a Brnsted acid, only

2) a Brnsted base, only

3) both a Brnsted acid and a Brnsted base

4) neither a Brnsted acid nor a Brnsted base

4. Given the reaction:

HSO4+ HPO4

2SO4

2+ H2PO4

Which pair represents an acid and its conjugate base?

1) HSO4and SO4

2

2) HSO4and HPO4

2

3) SO42

and H2PO4

4) SO42

and HPO42

5. According to Reference Table V, which of the following

is the strongest Brnsted-Lowry base?

1) HS

2) S2

3) HSO4

4) SO42

6. According to Reference Table V, which is the strongest

Brnsted base?

1) I

3) NH2

2) F

4) OH

7. According to Reference Table V, the Brion is classified

as a

1) strong conjugate base 3) weak conjugate base

2) strong conjugate acid 4) weak conjugate acid

8. If HCl and H2O react together, in an acid-base reaction to

form their Brnsted-Lowry conjugates, the products

would be

1) HCl and H3O+

2) Cl

and OH

3) Cl2and H24) Cl

and H3O

+

9. Which equation illustrates the amphiprotic properties of a

reactant species?

1) NH2(aq) + H2O()NH4+(aq) + OH

(aq)

2) H2O() + H2O()H3O+(aq) + OH

(aq)

3) HCl(aq) + H2O()H3O+(aq) + Cl

(aq)

4) 2H2(g) + O2(g)2H2O()


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27. Given the reactionsXand Ybelow:X: H2O + NH3 NH4

+ + OH

Y: H2O + HSO4 H3O

+ + SO4

2

Which statement describes the behavior of the H2O in

these reactions?

1) Water acts as an acid in both reactions.

2) Water acts as a base in both reactions.

3) Water acts as an acid in reactionXand as a base in

reaction Y.

4) Water acts as a base in reactionXand as an acid in

reaction Y.28. In the reaction:

HBr + H2O H3O++ Br

Which is a conjugate acid-base pair?

1) HBr and Br

2) HBr and H2O

3) H3O+and Br

4) H3O+and HBr

29. Which reaction illustrates amphoterism?

1) H2O + H2OH3O++ OH

2) HCI + H2OH3O++ Cl

3) NaClNa++ Cl

4) NaOHNa

+

+ OH

30. Which is the conjugate acid of HSO4?

1) H2SO42) H3O

+

3) HSO3

4) SO42

31. What is the conjugate acid of HPO42

?

1) H3O+

2) H2PO4

3) H3PO44) PO4

3

32. Which species can act as an acid?

1) SO22) CO23) NH4

+

4) PO43

33. Which of the following is the strongest base (proton

acceptor)?

1) I-

3) Cl-

2) Br -

4) F-

34. Which of the following Brnsted bases has the strongest

conjugate acid?

1) Cl

2) OH

3) NO2

4) PO43

35. According to Reference Table V, what is the conjugate

acid of the hydroxide ion (OH)?

1) O22) H

+

3) H2O

4) H3O+

36. In the reaction:

H2S + NH3NH4++ HS

Which two species act as a base by accepting protons?

1) NH3 and HS

2) NH3and NH4+

3) H2S and NH34) H2S and HS

37. Which of the following Brnsted bases has the strongest

conjugate acid?

1) OH

2) F

3) HS

4) NO3

38. Which species is amphoteric?

1) H2S 3) Cl

2) HS

4) HCl

39. According to Reference Table V, the HSO4ion can act

as

1) an acid, only

2) a base, only

3) either an acid or a base

4) neither an acid nor a base

40. Based on Table V, which ion is amphiprotic?

1) NH4+

2) OH

3) NO2

4) HSO4


HS+ NH2

NH3+ S2

The two bases that accept protons are

1) HSand NH2

2) HSand NH3

3) S2

and NH2

4) S

2

and NH342. Which of the following Brnsted acids has the strongest

conjugate base?

1) HBr

2) H2SO43) HF

4) H2S

43. According to Reference Table V, which substance is

amphoteric (amphiprotic)?

1) HNO32) NO2

3) HCO3

4) HF44. In the reaction H2S + NH3 *NH4++ HS

, the two

Brnsted-Lowry bases are

1) NH3and HS

2) NH3and NH4+

3) H2S and NH3

4) H2S and HS


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45. Given the equation:

NH3(g) + H2O()NH4+(aq) + OH

(aq)

The two acids acting as proton acceptors are

1) NH3and H2O

2) NH3and NH4+

3) H2O and NH4+

4) H2O and OH

46. Which of the following Brnsted acids has the strongest

conjugate base?

1) HF 3) HBr

2) HCl 4) HI


H2SO4+ H2OH3O++ HSO4

Which two are proton donors?

1) H2SO4and H3O+2) H2SO4and HSO4

3) H2O and H3O+

4) H2O and HSO4

48. Given the reaction at equilibrium:

HSO4+ NH3SO4

2+ NH4

+

What are the two species that are acids?

1) NH3and NH4+

2) NH3and SO42

3) HSO4and SO4

2

4) HSO4and NH4

+

49. Given the reaction:

H2O + HClH3O++ Cl

The Brnsted-Lowry base for the forward reaction is

1) H2O 3) H3O+

2) HCl 4) Cl


HSO4+ H2OH3O

++ SO4

2

The HSO4ion is

1) a proton donor

2) a proton acceptor

3) both a proton donor and acceptor

4) a base


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Reference Tables


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Reference Tables


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Answer KeyAnswer Key

. 1

. 3

. 2

. 1

. 2

. 3

. 3

. 4

. 2

0. 2

1. 3

2. 2

3. 3

4. 4

5. 4

6. 1

7. 1

8. 3

9. 1

0. 4

1. 1

2. 2

3. 4

4. 2

5. 4

6. 1

7. 3

8. 1

9. 1

30. 1

31. 2

32. 3

33. 4

34. 1

35. 3

36. 1

37. 4

38. 2

39. 3

40. 4

41. 3

42. 4

43. 3

44. 1

45. 3

46. 1

47. 1

48. 4

49. 1

50. 1

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SAT ABS Bronsted Lowry