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50 ml of standard gold sol needs 0.05 mg of gelatin for its protection from coagulation. Calculate goldnumber of gelatin :(1) 0.0001(2) 0.001(3) 0.01(4) 0.1 |
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Answer» Gold number of GELATIN =0.01.This MEANS that 0.01 mg gelatin is required to be ADDED to 10 ML of gold sol to completely prevent coagulation of 1 mL of 10% NACL solution.Therefore, gelatine added to 1000 mL of gold sol to prevent coagulation = 100.01×1000 =1 mg. |
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