What is the concentration of blood plasma under normal conditions?

[g07l0989]

what is the concentration of blood plasma under normal conditions??
how do you even begin to answer this question HELP!

 

[AbedeuS]

This is classed as chemistry? I guess you'd just suppose that plasma is the main constituant in the blood mixture (>90%) and go on to find its molarity from there...but I was under the impression that blood plasma isn't a single component chemical anyway?

And just by a quick google search its usually 55% of blood, and not a single component, so I couldn't give any quick tips?