Hazards
- HCl is corrosive and toxic.
- Methanol is flammable.
Chemicals and Solutions
- methanol 100 ml
- ammonium hydroxide 1M
- HCl conc. in dropper bottle
Materials
- Mortar and pestle
- 250 ml beaker
- magnetic stirrer
- buret stand and buret
- rose petals
Procedure
Mix methanol and rose petals in the mortar. Add 2-3 drops HCl, stir, and decant the liquid into a beaker. Place the beaker on the magnetic stirrer and titrate with the ammonium hydroxide.