Chemistry, asked by snchobi4133, 1 year ago

The coagulation of 100ml of a colloidal sol of gold is completely prevented by addition of 0.25g of starch to it before adding 1ml of 10% nacl solution. Find out the gold number of starch:

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Answered by nymphias15

6

Gold number is 250mg/10(10ml)= 25.

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