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 does a conjugate acid base pair contain?

Answer 3

two species that can be interconverted by transfer of a proton

Question 4

monobasic, dibasic and tribasic acids refer to what?

Answer 4

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

Question 5

Acids undergo redox reactions with some metals to produce what?

Answer 5

salt and hydrogen gas

Question 6

acid + carbonate =?

Answer 6

salt, water and carbon dioxide

Question 7

acid + base =?

Answer 7

salt and water

Question 8

acid + alkali =?

Answer 8

salt and water

Question 9

what is the logarithmic equation for pH?

Answer 9

-log[H+]

Question 10

what is the logarithmic equation for [H+]?

Answer 10

10^-pH

Question 11

what is the equation for Ka for weak acids?

Answer 11

Ka = [H+]^2 / [HA]

Question 12

what is the equation for pKa?

Answer 12

-log Ka

Question 13

what is the equation for Ka that includes pKa?

Answer 13

10^-pKa

Question 14

the stronger the acid the _____ the Ka value and the ______ the pKa, fill in the gaps

Answer 14

larger, smaller

Question 15

the weaker the acid the _____ the Ka value and the ______ the pKa, fill in the gaps

Answer 15

smaller, bigger

Question 16

What is the equation of Kw?

Answer 16

[H+] x [OH-]

Question 17

what is the value of Kw?

Answer 17

1 x10^-14