50 ml of standard gold solution needs 0 05 mg of gelatin for its protection from coagulation Calculate - Chemistry - Surface Chemistry

Question

50 ml of standard gold solution needs 0 05 mg of gelatin for its
protection from coagulation Calculate gold number of gelatin

Richa Gupta · Answer

we have to find the gold number of gelatin i e ,amount of
gelatin in milligrams needed to prevent coagulation of 10 ml of
standard gold solution/sol so now as 50 ml of standard gold
solution/sol needs = 0 05 mg of gelatin
1 ml of standard gold solution/sol needs = 0 05/50mg of
gelatin
= 0 001mg of gelatin
10 ml of standard gold solution/sol needs = 0 001 * 10 mg of
gelatin
=0 01 mg of gelatin
hence, gold number of gelatin = 0 01

50 ml of standard gold solution needs 0.05 mg of gelatin for its protection from coagulation . Calculate gold number of gelatin.