Ch 15

Question 1

Arrhenius theory

Answer 1

acid donates protons, OH

Question 2

bronstead lowry

Answer 2

acid is proton donor, base is proton acceptor

Question 3

acid to conjugate base

Answer 3

take away H

Question 4

base to conjugate acid

Answer 4

Add H

Question 5

aphiprotic/amphoteric

Answer 5

can donate and accept protons

Ie water

Question 6

review learning checks

Answer 6

ok

Question 7

Kw

Answer 7

1.0 X 10^ -14

Question 8

when asked for ion concentrations

Answer 8

give all ions but ALSO OH and H+

Question 9

pH and sig digs

Answer 9

number of decimal places in pH value is the number of sig figs

Question 10

pH + pOH

Answer 10

14.00

Question 11

remember to put the right arrows for strong acids and bases

Answer 11

yes

Question 12

major species in strong acids and bases

Answer 12

ions and water

Question 13

major species in weak acid and base

Answer 13

water and weak acid/base

Question 14

oxyanions to acid

Answer 14

“ate ic” “ite ous”

Question 15

carboxylic acid

Answer 15

CO2H

- always weak acids

Question 16

which H will become acid

Answer 16

the one attached to O

Question 17

COH ionizes

Answer 17

never!

Question 18

most common weak bases

Answer 18

have nitrogen with 3 bonds and lone pair

Question 19

strong acid and base in water

Answer 19

neutral

Question 20

weak acid conjugate base in water

Answer 20

is basic

Question 21

cations of weak bases

Answer 21

acidic

Question 22

NH4+ in water

Answer 22

acidic

Question 23

weak bases

Answer 23

anything not group 1 or Ca, Sr, Ba

Question 24

KaKb

Answer 24

= kw

Question 25

pKa + pKb

Answer 25

14.00

Question 26

higher ka

Answer 26

more likely to loose H

Question 27

polyprotic acid and strength

Answer 27

first H is strong, then gets weaker

Question 28

more electronegative atoms and H loss

Answer 28

means less electrons around H bond, easier to break

Question 29

atomic radius and H loss

Answer 29

larger orbitals, less overlap, weaker bonds, higher acidity

Question 30

oxyacids and H loss

Answer 30

more EN atom will take electrons so more acidic

Question 31

hypohalous

Answer 31

HO and halogen

Question 32

carboxylic acids and acidity

Answer 32

take away electrons from whole atom so more acidic, less electron cloud also, can have resonance so more stable

Question 33

alcohols and acidity

Answer 33

not acidic at all