Investigate a factor affecting the initial rate of reaction

    HazCard :

• Skimmed Milk powder solution 2%

• 2% Trypsin

• Distilled water (in Class)

• Graduated pipettes and small beakers for the dilution

•  2 X 5cc syringes 

• Measuring cylinders (10ml/25ml)

• Test tubes

• Stop-clock

• Marker pen 

• Colorimeter with cuvettes

• Dirty tray to clean up