RP9 investigating pH changes

Question 1

What is an acid

Answer 1

Proton donor

Question 2

What is a bse

Answer 2

Proton acceptor

Question 3

What is an alkali

Answer 3

Base that dissolves in water

Question 4

Why does a pH meter need to be calculated

Answer 4

So pH values for each reading are accurate

Question 5

How can you investigate how a weak acids pH changes upon addition of strong base

Answer 5

Add 2cm^3 NaOH from burette to ethanoic acid, in a conical flask
Continue adding 2cm^3 of NaOH measuring pH each time

Question 6

Whys it important to stir resulting solution

Answer 6

So all acid and base is thoroughly mixed, pH doesn’t significantly vary throughout solution as would be inaccurate