RPA02: Neutralisation

Question 1

Aim

Answer 1

Identify the concentration of a dilute sulfuric acid

Question 2

Step one

Answer 2

Measure 25 cm³ of a known concentration of sodium hydroxide into a conical flask with a pipette 

Question 3

Step two

Answer 3

Place conical flask on a white tile

Question 4

Step three

Answer 4

Fill burette with sulphuric acid using a funnel

Question 5

Step four

Answer 5

Record initial reading of acid in the burette

Question 6

Step five

Answer 6

Add five drops of indicator into conical flask

Question 7

Step six

Answer 7

Slowly open top of burette while swirling conical flask

Question 8

Step seven

Answer 8

Close burette when a colour change occurs

Question 9

Step eight

Answer 9

Record final reading of acid in burette

Question 10

Step nine

Answer 10

Calculate concentration by using the formula:
Concentration = moles / volume