Semi Rigid
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Honors chem, please help!?
A time-release capsule releases a drug at a constant rate so that the concentration of the drug in the body is not so high as to damage the body nor so low as to be ineffective. The capsule has two compartments separated by an impermeable, elastic membrane. One compartment contains the drug, the other a saturated solution of sodium chloride. The outer wall of the drug compartment consists of a rigid, selectively permeable material. The wall is designed to allow only molecules of the drug to pass outward through the wall. The outer wall of the compartment containing the sodium chloride solution consists of a semi-permeable membrane. A thin, protective coating that dissolves when the capsule enters the body covers the entire capsule
What happens to the concentration of aqueous sodium chloride over time?
What process is it? What are the two functions of the elastic, impermeable membrane separating the aqueous sodium chloride solution and the drug?
Increases until it equals the osmotic pressure of the body.
Its a first order process. Osmosis and diffusion.
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A great place to shop for Semi Rigid products is Amazon.
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A058/5 Semi-Rigid Flexible Aluminum Duct (5" X 8')
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DescriptionA058/5 Semi-Rigid Flexible Aluminum Duct (5"" X 8-ft) |
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Whirlpool 4396009RP 5-Foot Flexible Venting
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DescriptionM 5 FT UCVENT |
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8" x 8' - Semi Rigid Aluminum Duct Hose
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DescriptionConnects fans, air-cooled refectors, etc. together. This ducting can be used to vent grow rooms, lighting systems and cooling systems. When cooling lighting systems it is best to take air from outdoors or from another room in the house and run that cool air through the reflectors, then shoot the heated air back outdoors... |
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A048MX/9 Semi-Rigid Flexible Aluminum Duct (4" X 8') (with 2 metal worm drive clamps)
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DescriptionA048MX/9 LL (with 2 metal worm drive clamps) |
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Dundas Jafine MFX48D2DZW Semi-Rigid Dryer to Duct Connector Kit, 4-Inches by 8-Feet
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Description4'' x 8' of clothes dryer duct and also includes D2D (duct to dryer) connector. Connects clothes dryer exhaust port to exhaust duct. Clamp free design (no tools required). Main duct connection elbow with friction fits connection to dryer... |
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Semi-Rigid Flexible Back Holder / Backer Pads for Diamond Polishing Pads
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DescriptionBack holders are designed to fit diamond polishing pads of same or larger sizes. The polishing pads with velcro backing could be attached to any back holders easily and allows for a fast switching between different grit size... |
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AIRCAST AIRSPORT ANKLE BRACE Size: LT/SML
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DescriptionAIRCAST AIRSPORT ANKLE BRACE Size: LT/SML |
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Aircast Airsport Ankle Brace Left/Medium
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DescriptionINDICATIONS: Air-Stirrup ankle brace features a semi rigid shell and aircells, to provide comfort and support. Additional compression. |
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Case Logic QHDC-101 Portable EVA Hard Drive Case (Black)
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DescriptionCase Logic QHDC-101BLACK Hard Disk Case QHDC-101BLACK Storage Media Cases |
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Case Logic Portable EVA Hard Drive Case QHDC-101 (Red)
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DescriptionCase Logic QHDC-101 Portable Hard Drive Case QHDC-101RED Storage Media Cases |
Semi-rigid RC airship
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