Asked by lulu

the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an intravenous injection to be isotonic with blood?
Answered by DrBob222
pi = MRT
7.56 = M*0.08205**273 + 37)
From M, then moles = grams/molar mass
Answered by lulu
thats what i did and i got it wrong. my answer was 53.46. the study guide says 54.2.
Answered by DrBob222
My answer is 53.5 grams. You have too many significant figures. The study guide must be wrong.
Answered by Anonymous
I got approx. 54.
Same set up. But the numbers I used were .08206 and MW = 180. and I got 54.
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