Reactivity 3.1 - acids and bases

Question 1

What is the definition of Bronsted-Lowry acids?

Answer 1

proton donors

Question 2

What is the definition of Bronsted-Lowry bases?

Answer 2

proton acceptors

Question 3

What are conjugate acid-base pairs?

Answer 3

pairs of compounds that differ by one proton

Question 4

What are amphiprotic substances and what is the example?

Answer 4

can either donate or accept a proton, E: water

Question 5

What allows (in calculations) to get H+ concentration or OH- concentration from each other?

Answer 5

Kw for water, where [H][OH]=10^-14

Question 6

What is a strong acid?

Answer 6

an acid that dissociates fully

Question 7

What is a weak acid?

Answer 7

acid that doesn’t fully dissociate

Question 8

What are the characteristics of strong acids?

Answer 8

• low pH
• great conductors
• reacting fast

Question 9

What are the characteristics of weak acids?

Answer 9

• higher pH 3-5
• poor conductors
• reacting slow

Question 10

What are the 3 examples of strong acids?

Answer 10

HCl, HNO3, H2SO4

Question 11

What are the 3 examples of weak acids?

Answer 11

H2CO3, H3PO4, CH3COOH

Question 12

What are the examples of strong bases?

Answer 12

NaOH, KOH, Ba(OH)2

Question 13

What are the examples of weak bases?

Answer 13

NH3, CH3NH2