Home
Class 12
CHEMISTRY
Gold number of haemoglobin is 0.03. Henc...

Gold number of haemoglobin is `0.03`. Hence, `100 mL` of gold sol will require haemoglobin so that gold is not coagulated by `1 mL` of `10%` NaCl solution:

A

`0.03 mg`

B

`30 mg`

C

`0.30 mg`

D

`3 mg`

Text Solution

Verified by Experts

The correct Answer is:
C
`0.03`= weight to Hb in mg xx `10//100`
weight of Hb in mg `=0.30`
Promotional Banner

Similar Questions

Explore conceptually related problems

Gold number of haemoglobin is 0.03. Hence, 100 mL of gold sol will require how many mg haemoglobin so that gold is not coagulated by 1 mL of 10% NaCl solution?

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

Which of the following can protect a gold sol from coagulation by NaCl solution?

In a colloidal state, the particle size of he dispersed phase ranges between 10^(3) to 10^(6) pm and the colloidal sol is of heterogeneous nature. Depending upon the ease with which these sols are formed, the colloidal sols are cassified as lyophilic and lyophobic. THe stability of a colloidal sol is due to the presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. The coagulationg power of the active ions of he electrolytes can be compared with the help of Hardy-Schulze Law. The protecting power of the lyophilic sols can be compared with the help of gold number. Lesser the value of gold number, more will be the protecting power of the lyophilic sol. 0.025 g of starch sol is required to prevent the coagulatio of 10 mL of gold sol when 1 mL of 10% NaCl solution is present. The gold number of strach sol is :

Gold number of starch is 25. How much of it is required to prevent coagulation of 100 ml of gold sol adding 1 ml of 10% NaCl solution?

The gold number of gelatin is 0.01 . Calculate the amount of gelatin to be added to 1000mL of a colloidal sol of gold to prevent its coagulation, before adding 1mL of 10%NaCl solution.