1. Tardigrade
  2. Question
  3. Chemistry
  4. Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated by 10 ml of 10 % NaCl solution -

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Gold number of haemoglobin is $0.03$. Hence $100\, ml$ of gold sol will require haemoglobin so that gold is not coagulated by $10\, ml$ of $10 \% NaCl$ solution -

Surface Chemistry

Solution:

Gold number
$=\frac{\text { weight of lyophilic sol in } mg }{\text { Volume of gold sol in } ml } \times 10$
$\Rightarrow 0.03=\frac{\text { weight of lyophilic sol in } mg }{100} \times 10$
$\Rightarrow$ weight of lyophilic sol in $mg =0.3$
$\therefore $ weight $=0.3\, mg$