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I am making a solution of DL-alpha-Glycerol Phosphate. I want it to be a 25mM solution. The Moleclar Mass is 194.36 (according to the label). I added 1.21 g of Glycerol -PO to 250 mL of water. I think this is the correct amount but the solution looks cloudy and it should be clear. Could someone let me know if I did this wrong?

2007-01-08 06:07:09 · 6 answers · asked by Anonymous in Science & Mathematics Chemistry

to: oni
Isn't there 1000mM to 1 M
and
you didn't account for fact that I am making 250mL not 1 L (so would that be 0.121g in 250mL)?

2007-01-08 06:38:42 · update #1

6 answers

The math is right. Let glycerol phosphate be called GP.

250mLsoln x 25mmolGP/1000mLsoln x 194mgGP/1mmolGP = 1210mgGP = 1.21gGP

Also, the Merck Index says what they call L-alpha-glycerophosphoric acid is "readily soluble in water." Maybe you got a bad batch from the supply house.

2007-01-08 06:28:47 · answer #1 · answered by steve_geo1 7 · 0 0

You put too much of the the DL-alpha-Glycerol Phosphate. You only need .49g of the said material and the calculuations is as follows:

25mM * (1 M / 100mM) = .0025 M = .0025 moles/L
.0025 moles/L * (194.36 g/mole) = .49 g

2007-01-08 14:31:59 · answer #2 · answered by oni 2 · 0 0

a

2007-01-08 14:08:47 · answer #3 · answered by Anonymous · 0 0

Whoa, try this:
http://www.ifigure.com/science/chem/chem.htm

2007-01-08 14:27:20 · answer #4 · answered by lynn y 3 · 0 0

aight aight aight

2007-01-08 14:08:50 · answer #5 · answered by B3ba N 1 · 0 0

Dude.

I lost you at "I am".

2007-01-08 14:09:06 · answer #6 · answered by Anonymous · 0 0

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