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Science-Related Homework Help High School Level Science Topic started by: LexRunner408 on Oct 1, 2013



Title: How much does 20 mL of water in dialysis tubing weight?
Post by: LexRunner408 on Oct 1, 2013
I forgot to record the data in the lab.  Does anyone know how much 20 mL of water weights in a dialysis tubing bag? 20 mL of glucose solution? and 20 mL of salt solution?
Thanks!


Title: Re: How much does 20 mL of water in dialysis tubing weight?
Post by: Doctor-2-B on Oct 2, 2013
The water can be calculated from its density:

20 mL H2O * 1 mg/mL = 20 mg

As far as the glucose and salt, you wouldn't be able to tell unless you knew the concentration of the solutions.