Quote Originally Posted by Gerald C Koch View Post
If you add sodium hydroxide until the slurry of borax just dissolves this does not take into account the borax that was already in solution when you started.
The line given above should read as given below for clarity.

If you add sodium hydroxide until the slurry of borax just dissolves this does not take into account an amount of borax equal to that which was already in solution when you started.