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by: Kylie Senn
Kylie Senn
Cal Poly

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About this Document

Chem notes
Chemical Principles I
Professor lehr
75 ?




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This 1 page Bundle was uploaded by Kylie Senn on Sunday March 6, 2016. The Bundle belongs to CHEM 110 at California Polytechnic State University San Luis Obispo taught by Professor lehr in Spring 2016. Since its upload, it has received 14 views. For similar materials see Chemical Principles I in Science at California Polytechnic State University San Luis Obispo.


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Date Created: 03/06/16
Solubility Thursday, February 25,12:13 PM Electrolytes -are substances that form cation and anions that dissolve in water -conduct an electric current. Water is an insulator. It's the ions in water that conduct the electricity. Sugar is a covalent compound, all non-metals (doesn't conduct electricity) Strong Electrolytes -break apart completely into ions (ionized comp.) when dissolved in water. -solutions conduct electricity well EX NaCl(s) + H20 (1)-> Na+(Aq)+ Cl-(Aq) Weak electrolytes -only partially ionized when dissolved in water -weakly conduct electricity EX. Vinegar-> .4% ions Nonelectrolytes -dissolve as molecules only -no ions are produced in water -solution do not conduct an electric current ***Ionic compounds break apart into cation and anions ***Covalent stay together do not break apart Equations for dissolving Electrolytes in the Body -carry messages send to and from the brain as electrical signals -maintain cellular function with the correct concentrations electrolytes Most important electrolytes in the body Na+,K+,Ca2+,Mg2+,Cl-,HCO3-,H2Po4-,HSO4- Predicting solubility -like dissolves like Examples - A polar solvent such as water is needed to dissolve polar solutes such as sugar. - Carbon,hydrogen non-polar. Gasoline is covalent. Chem Study Guide Page 1


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