The gold number of gelatin is `0.01` . Calculate the amount of gelatin to be added to `1000mL`
Channel: Doubtnut
Date: 2020-07-12

The gold number of gelatin is `0.01` . Calculate the amount of gelatin to be added to `1000mL` of a colloidal sol of gold to prevent its coagulation, before adding `1mL` of `10%NaCl` solution.