JustCallMeHim500 - 18-5-2007 at 14:47
It seems like when synthesis are written, the authors are often times very unclear on certain things. That, or I am just so lacking in information
that I can't make sense out of it on my own (probably the latter).
Let's say a certain synthesis requires something to be washed with 5% sodium bicarbonate solution. No further information is given on if it is 5% by
weight, volume, solubility, et cetera. Can someone help clarify this for me?
Specifically for a 5% sodium bicarbonate solution, which one would make more sense?
bio2 - 18-5-2007 at 16:19
If no other information is given then it is by weight of
the solution.
Ramiel - 19-5-2007 at 08:32
furthurmore, the example you give of say "three 50mL portions of 5% Na<sub>2</sub>CO<sub>3</sub> soln." (I'm aware that it's
just an example) could just be translated to "as many splashes of a dilute, weak base as you think". Percentages rarely make or break a reaction.