Titration

Question 1

What is titration

Answer 1

An experimental method for finding the concentration of a solute in the solution

Question 2

Acid base titration

Answer 2

A solution of an unknown contraction is neutralised with a solution of a base with known concentration

Question 3

What colour is phenolphthalein in acid and base

Answer 3

In an acid it is colourless

In a base it is pink

Question 4

What colour is methyl orange in acid and base

Answer 4

In acid it is red and in base it is yellow

Question 5

What is the end point

Answer 5

Tje point at which the indicator has just changed colour

Question 6

How to stop errors while doing titration

Answer 6

• take the funnel out from the biurets before any readings
• view the line from its eye level to avoid paralex
  Calculate a mean titre

Question 7

6 step titration

Answer 7

Using a PIPETTE measure out a set volume of UNKNOWN CONCENTRATION into a flask

Add indicator solution NOT UNIVERSAL INDICATOR

fill a biurette with KNOWN CONCENTRATION substance all the way till full

Fill at eye level don’t hold it up

Remove funnel once done filling

Use the buirette to add known to unknown drop by drop

Make sure to regularly swirl flask

If some known concentration drips on side of flask wash into flask using distilled water

When colour changes write down value

Repeat