Titration and experimentation

Question 1

Equation for standard solutions from a different concentration?

Answer 1

Volume to use

=Final conc/Initial conc x end volume needed

Question 2

Methyl orange in acids/alkalis?

Answer 2

Acid= Red

Alkali= Yellow

Question 3

Phenolphthalein in acids/alkalis?

Answer 3

Acid= Colourless

Alkali= Pink

Question 4

What property of these indicators make them suitable for titrations?

Answer 4

They change colour quickly over a small pH range

Question 5

Steps to make a standard solution

Answer 5

1) Find moles of solute
2) Fine mass of solute
3) Measure solute out and dissolve in a small drop of distilled water
4) Pour into volumetric flask
5) Rinse beaker with distilled water and pour into volumetric flask
6) Add until it reaches the neck
7) Pipette until meniscus reaches the line
8) Stopper bottle, mix it and recheck