Question

0.25g lyophilic colloid is added to 100ml gold solution to prevent the coagulation on adding 1ml 10% NaCl solution.What will be gold number of lyophilic colloid? ​

Answer 1

Answer:

It's the minimum amount of protective colloid in milligrams which prevents a colour change from red to violet of 10ml gold sol by the addition of 1 ml of 10%NaCl solution. 0.25 mg of colloid is added to 100 ml gold solution. x = 25 mg. Thus gold number of given lyophillic colloid will be 25.

Answer 2

Answer:

Answer is in the attachmen

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