Colorimeter analysis

Question 1

Analysis by colorimeter:

HOW U DO IT??

Answer 1

1. Prepare standard solutions of the coloured chemical
2. Use a filter which is complementary to colour of chemical
3. Zero colorimeter with distilled water
4. Measure absorbance readings with different concentrations
5. Plot calibration curve of absorbance against concentration
6. Carry out reaction
7. Use colorimeter at different times plot conc.- time graph.