# Formulation of a buffer solution - (Dec/05/2005 )

HI

I'm not familiar with this particular method of expressing the formulation of a buffer solution.

8U/mol 0.05 mol/Na-citrate/HCl.

I think I need to first make 0.05mol/L of Na-citrate in HCl.

What does 8u/mol mean? Do I need to add 8U of the chemical in volume that contains 1 mol of Na-Citrate?

Thanks so much.

-ruchis-

Hi,

8U/mol is refers 8 units of X( X= Unkown chemical ) is present in 1 mol solution./ If u take l mole of that solution it contains 8 units of X ok.

Then 0.05 mol Na citatrare/HCl. That is prepare 0.05 mole Na citrate and adjust pH with HCl

Here no need to prepare 1 ltr of 0.05 mol, prepare stock of 0.5 mole {10 x ( x= times ) }, then dilute to 1x (0.05 mol )

It may help U,

Bye

-shiva-

QUOTE (shiva @ Dec 13 2005, 09:28 AM)
Hi,

8U/mol is refers 8 units of X( X= Unkown chemical ) is present in 1 mol solution./ If u take l mole of that solution it contains 8 units of X ok.

Then 0.05 mol Na citatrare/HCl. That is prepare 0.05 mole Na citrate and adjust pH with HCl

Here no need to prepare 1 ltr of 0.05 mol, prepare stock of 0.5 mole {10 x ( x= times ) }, then dilute to 1x (0.05 mol )

It may help U,

Bye
i didn't agree with what above said.

-forrest gump-