chapter 20 (acids bases and pH)

Question 1

What is a bronsted lowry acid

Answer 1

A proton donor

Question 2

What is a bronsted lowry base

Answer 2

a proton acceptor

Question 3

what is a conjugate acid-base pair

Answer 3

two species that can be inter converted by a proton

Question 4

what is a hydronium ion

Answer 4

a H+ ion

Question 5

What do mono,di and tri basic refer to

Answer 5

the total number of hydrogen ions in an atom that can be replaced per molecule in an acid-base reaction

Question 6

what does reaction between acids and metal form

Answer 6

salt and hydrogen

Question 7

what do acids and carbonate form

Answer 7

salt, water and carbon dioxide

Question 8

what does a reaction between a metal oxide and an acid form

Answer 8

salt and water

Question 9

what does a reaction between an acid and alkali form

Answer 9

salt and water

Question 10

what does low value of H+ mean

Answer 10

high value of pH

Question 11

what does a high value of H+ mean

Answer 11

a low value of pH

Question 12

how to find pH from H+

Answer 12

-log(H+)

Question 13

how to find H+ from pH

Answer 13

10 to the power of pH

Question 14

What is a strong and weak acid

Answer 14

strong fully dissociates in aqueous solution, weak partially dissociates

Question 15

what is the acid dissociation shown as

Answer 15

HA= H+ + A-

Question 16

What is Ka and how is it shown

Answer 16

Acid dissociation constant
Ka = [H+] [A-]
————
[HA]

Question 17

how is pKa calculated

Answer 17

-logKa

Question 18

If the Ka is higher

Answer 18

The pKa is lower