Bronsted-Lowry Acids and Bases

Question 1

when acid reacts the amount of _________ increases

Answer 1

hydronium H3O+

Question 2

when base reacts the amount of ________ increases

Answer 2

hydroxide OH-

Question 3

bronsted-lowry acid

Answer 3

molecule or ion that donates a hydrogen ion (H+) in reaction

Question 4

bronsted-lowry base

Answer 4

molecule or ion that accepts a hydrogen ion (H+)

Question 5

do bronsted-lowry acids and bases work simultaneously?

Answer 5

yes

Question 6

what qualifies as a bronsted-lowry base

Answer 6

anion that can form neutral compound with a proton

molecule which has 1 or more electronegative atoms that have lone pair electrons that form covalent bond with hydrogen ion - COLUMN 15 and 16 ON PERIODIC TABLE

Question 7

example of anion acceptors

Answer 7

OH- —> H2O

Question 8

any anion left after an Arrhenius acid has ionized can be a Bronsted-Lowry base

Answer 8

example:

F- ion left after HF ionizes

HF + H2O —> H3O+ F-

F- can act as a bronsted-lowry base

F- + H2O —> OH- + HF

Question 9

do molecules containing nitrogen contain an atom with lone pairs groups?

Answer 9

yes

Question 10

does oxygen exist with a lone pair of electrons in most molecules?

Answer 10

yes

Question 11

T or F: a bronsted base is a substance which produces OH- ions in a solution

Answer 11

false

Question 12

Hydrogen Fluoride (HF) is

Answer 12

both an Arrhenius acid and bronsted -lowry acid

Question 13

HPO2-2 is best described as

Answer 13

both a bronsted-lowry acid and base

Question 14

what substance is formed when the hydroxide ion accepts a proton

Answer 14

water

Question 15

T or F: HSO3- is both a bronsted-lowry base and a bronsted-lowry acid - amphoteric species

Answer 15

true

Question 16

T or F: H+ ion is a hydrogen atom which has lost its electron and now is a bare proton

Answer 16

True

Question 17

T or F: acetate ion is a bronsted-lowry base?

Answer 17

true

Question 18

T or F: the bronsted-lowry concept is not limited to aqueous solutions

Answer 18

true

Question 19

why do compounds that contain N frequently act as bronsted-lowry bases

Answer 19

nitrogen atoms has lone pairs of electrons

Question 20

T or F: every acid by the Arrhenius definition is also a Bronsted-Lowry acid

Answer 20

true

Question 21

acid-base reaction according to bronsted-lowry is________

Answer 21

the transfer of a proton from one molecule to another

ex.

NH3 + H2O —> NH4+ + OH-

Question 22

conjugate base

Answer 22

particle produced when acid donates H+

Question 23

conjugate acid

Answer 23

particle produced when base accepts a H+

Question 24

example of acid base reaction

Answer 24

PO4-3 + H2O —> OH- + HPO4-2

base acid conjugate base conjugate acid

Question 25

amphoteric substance

Answer 25

capable of acting as either acid or base by donating or accepting it

Question 26

conjugate base writing it

Answer 26

remove H from formula and reduce charge by 1

ex.

HNO2 —> NO2-

Question 27

conjugate acid writing it

Answer 27

add hydrogen to formula and increase charge by 1

ex.

PO4-3 —> HPO4-2

Question 28

conjugate acid of ClO2-

Answer 28

HClO2

Question 29

T or F:the bronsted-lowry base in the reaction:

HS- + OH —> S-2 + H2O is HS-

Answer 29

False

Question 30

the conjugate base of HNO3 is

Answer 30

NO3-

Question 31

the conjugate base of H2SO4

Answer 31

HSO4-