Gold number of hemoglobin is 0.03. Hence 100ml of gold sol will require hemoglobin so that gold is not coagulated by 10ml of 10% NaCl solution

Dear Student,
GIVen : gold number =0.03 
Gold sol volume =100ml,
Let the amount of haemoglobin required be x mg 
Since we all know that gold number is the amount in milligrams required to prevent the coagulation of 10 ml of gold sol by 1 ml of 10% NaCl.
x100×10 =gold number
In the above question we have 
x100×10=0.03
x=0.03 mg 
Regards!
 

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