8.2 RP2 titrations

what is a titration

experiment that lets you see what volume of a reactant is needed to react completely with certain volume of another reactant

steps to titration (5)

1. measure out volume of alkali and put in flask w few drops indicator

2. fill burette with acid ,take reading and place alkali flask underneath it

3. first take rough titration to give approximate idea of how much acid needed to neutralise alkali

4. calculate amount of acid by subtracting initial from total

5. repeat and calculate mean

can you use universal indicator for titration

no, change is too gradual, colour change at exact point of neutralisation is needed.

what is a single  indicator

has one distinct colour change as particular ph due to one colour changing compound