Acids & Bases (3.1.12)

Question 1

What is a Bronstead-Lowry acid?

Answer 1

A proton (H+) donor

Question 2

What is a Bronstead-Lowry base?

Answer 2

A proton (H+) acceptor

Question 3

What is a Bronstead-Lowry acid-base reaction?

Answer 3

A reaction involving the transfer of a proton

Question 4

What is the acid and what is the base in this reaction?

HCl + NaOH –> NaCl + H2O

Answer 4

Acid: HCl
Base: NaOH

Question 5

What is a monoprotic acid?

Answer 5

An acid that releases one H+ ion per molecule

e.g. HCl, HNO3 & CH3COOH

Question 6

What is a diprotic acid?

Answer 6

• An acid that releases two H+ ions per molecule

e. g. H2SO4 & H2C2O4

Question 7

What is the definition of pH?

Answer 7

pH = -log[H+]

-always two decimal places

Question 8

How do you determine [H+] from pH?

Answer 8

[H+] = 10* (*= -pH)

Question 9

What are the steps for working out dilution of a strong acid?

Answer 9

1) Work out [H+] in original
2) Work out [H+] in diluted
3) pH = -log[H+]

Question 10

How to work out [H+] with old and new vol?

Answer 10

[H+] = old vol/ new vol x conc

Question 11

How to work out [H+] from