Chemistry worksheet
    Topic: Alternate Acid Base Theories
    Alternate Acid Base Theories
    1

    According to one acid-base theory, a base is an

    (1) H2 acceptor

    (2) H2 donor

    (3) H+ acceptor

    (4) H+ donor

    2

    Given the equation representing a reversible reaction:

    CH3COOH(aq) + H2O(ℓ) ⇌

    CH3COO(aq) + H3O+(aq)

    According to one acid-base theory, the two H+ donors in the equation are

    (1) CH3COOH and H2O

    (2) CH3COOH and H3O+

    (3) CH3COO and H2O

    (4) CH3COO and H3O+

    3

    Given the balanced equation representing a reaction:

    HCl + H2O → H3O+ + Cl

    The water molecule acts as a base because it

    (1) donates an H+

    (2) accepts an H+

    (3) donates an OH

    (4) accepts an OH

    4

    According to one acid-base theory, a molecule acts as an acid when the molecule

    (1) accepts an H+

    (2) accepts an OH

    (3) donates an H+

    (4) donates an OH

    5

    Given the equation representing a reaction at equilibrium:

    NH3(g) + H2O(ℓ) ⇌ NH4+(aq) + OHaq)

    If an acid is defined as an H+ donor, what is the acid in the forward reaction?

    (1) OH(aq)

    (2) H2O(ℓ)

    (3) NH3(g)

    (4) NH4+(aq)

    6

    Given the equation representing a reversible reaction:

    HCO3(aq) + H2O(ℓ) ⇌ H2CO3(aq) + OH(aq)

    Which formula represents the H+ acceptor in the forward reaction?

    (1) HCO3(aq)

    (2) H2O(ℓ)

    (3) H2CO3(aq)

    (4) OH(aq)

    7

    Given the equation representing a reaction at equilibrium:

    H2S(aq) + CH3NH2(aq) ⇌ HS(aq) + CH3NH3+(aq)

    According to one acid-base theory, the forward reaction is classified as an acid-base reaction because

    (1) H2S is a H+ donor and CH3NH2 is a H+ acceptor

    (2) CH3NH2 is a H+ donor and H2S is a H+ acceptor + are both H+ donors

    (3) HS and CH3NH3 + and HS− are both H+ acceptors

    (4) CH3NH3

    8

    Given the equation representing a reaction:

    H2CO3 + NH3 → NH4+ + HCO3

    According to one acid-base theory, the compound NH3 acts as a base because it

    (1) accepts a hydrogen ion

    (2) donates a hydrogen ion

    (3) accepts a hydroxide ion

    (4) donates a hydroxide ion

    9

    One acid-base theory defines an acid as an

    (1) H acceptor

    (2) H donor

    (3) H+ acceptor

    (4) H+ donor

    10

    According to one acid-base theory, NH3 acts as a base when an NH3 molecule

    (1) accepts an H+ ion

    (2) donates an H+ ion

    (3) accepts an OH ion

    (4) donates an OH ion

    11

    According to one acid-base theory, water can act as a base because a water molecule can

    (1) donate an H+ ion

    (2) accept an H+ ion

    (3) donate an H ion

    (4) accept an H ion

    12

    According to one acid-base theory, a water molecule acts as a base when it accepts

    (1) an H+ ion

    (2) an OH ion

    (3) a neutron

    (4) an electron

    13

    According to one acid-base theory, a water molecule acts as an acid when the molecule

    (1) donates an H+ ion

    (2) accepts an H+ ion

    (3) donates an OH ion

    (4) accepts an OH ion

    14

    Which statement describes one acid-base theory?

    (1) An acid is an H+ acceptor, and a base is an H+ donor.

    (2) An acid is an H+ donor, and a base is an H+ acceptor.

    (3) An acid is an H acceptor, and a base is an H donor.

    (4) An acid is an H donor, and a base is an H acceptor.

    15

    Given the balanced equation representing a reaction:

    H2O(ℓ) + HCl(g) → H3O+(aq) + Cl(aq)

    According to one acid-base theory, the H2O(ℓ) molecules

    (1) accept H+ ions

    (2) accept OH ions

    (3) donate H+ ions

    (4) donate OH ions