[alt-photo] assitance needed Pyrocat-HD

[Ken Sinclair]

It has been too many years for this aging brain to remember much  
about college chemistry
but here goes...

I just ran out of enough  Sodium metabisulphite for making up a batch  
of Pyrocat-HD.

I have more than an adequate supply of Sodium bisulphite...  
therefor,  my question is....

How much Sodium bisulphite will be required to provide the  
equivalence of 2 g of
Sodium metabisulphite for making up 200 ml of Pyrocat-HD solution A

Any and all chemical assistance on getting this made up this evening  
will be more than appreciated


Ken

Quando omni flunkus moritati (R. Green)