What are some indicators:
There was four different indicators used in this lab; Litmus, Phenophalene,
Bromothymol Blue and Universal indicator. Each one indicated something different.
What does each indicator indicate:
Litmus paper: There are two different types of litmus paper; blue and red.
Litmus paper are little pieces of paper that are either blue or red. Each type indicated something different.
When Blue litmus paper turns Red an acid is present.
When Red litmus paper turns Blue a base is present.
A fun way to remember this is to think of this:
When Blue litmus turns red an acid is present.
Red is an *aggressive* colour and acids are *aggressive*.
When Red litmus paper turns Blue a base is present. Blue is a *pleasant* colour and bases are *pleasant*.
Phenophalene(PHTH): Test to see if a baseic substance is present. It does this
by turning fuscia when added to a chemical, phenophalene is originally a clear liquid.
When PHTH is added to a liquid and turns it fuscia
a basic substance is present.
Bromethymol Blue (BTB): Test to see if a substance is an acid.
When BTB is added to a liquid and turns Yellow
a acid is present.
Universal: Indicates different pH levels of substances.
*You have to know the pH scale to understand the universal indicators.