Materials
- Student tray containing the following:
- 0.00200 M NaSCN in 0.5HNO3 o 0.500 M HNO3
- 1.0 M KSCN
- 1.0 M Fe(NO3)3
- 0.200 M Fe(NO3)3 in 0.5HNO3 o 0.002 M Fe(NO3)3 in 0.5HNO3 o 0.1 M AgN
- o 0.5 M K3PO4
- 9- 25 mL Erlenmeyer flasks o 3- 50 mL Erlenmeyer flasks o 8 cuvets
- 3- 50 mL beakers
- 1 mL, 5 mL and 10 mL measuring pipet o 5 mL volumetric pipet
- 7 test tubes
- 125 mL Erlenmeyer flask
- 250 mL Erlenmeyer flask
- 250 mL beaker
- 150 mL beaker
- 2-50 mL Graduated cylinders o Toothpicks or wooden stirrers
- In the red tray at each station.
- DI water bottle
- Supply beaker with disposable items: pipets, scoopula, small weigh boat, parafilm. o Container of glassware soap and a brush in a beaker labeled “Waste.”
- Spectrophotometer
Safety and Notes
It is important to follow the safety guidelines below while performing this lab.
- Safety goggles must be worn at all times.
- All containers containing chemicals must be labeled according to the TCC policy.
- All compounds should be treated with caution.
- Nitric acid is corrosive. If it comes in contact with your skin, flush the area with copiousamounts of water and alert your instructor.
- Dispose of all compounds in the CHM 112 waste in the hood at the back of the room.
- Wash, clean and put back all equipment before leaving lab.