Osmosis and Darrow Yannet Diagrams
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Predict changes (mathematically and with Darrow Yannet diagrams), caused by infusion of 3 L of:
1. 150 mM NaCl
2. 0.45% NaCl
3. 5.5% NaCl
4. pure water.
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This solution provides an in-depth explanation of how to predict changes caused by the infusion of various substances.
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In this question, we are looking to predict the movement of water into or out of a cell after infusion of certain solutions. To answer this question, we will have to understand and know the osmolarity of the cell and the osmolarity of the solution. Osmolarity is measured in osmoles/L. An osmole is the number of moles of ions that would be created by a solution. NaCl would dissociate in the blood into Na+ and Cl-. Therefore, 2 moles of NaCl would actually become 4 osmoles. The osmolarity within the cell (intracellular osmolarity) is typically considered to be the same as plasma osmolarity, which in a human is about 300 mOsm/L. With this information in mind, we can answer the following questions:
1) 150 mM NaCl: we need to convert this to ...
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