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AP CHEMISTRY STOICHIOMETRY UNIT NOV 27,2012

AP CHEMISTRY STOICHIOMETRY UNIT NOV 27,2012. WATER IS ONE OF THE MOST IMPORTANT SUBSTANCES ON EARTH. IT IS ESSENTIAL FOR SUSTAINING REACTIONS THAT KEEP US ALIVE, BUT IT ALSO AFFECTS OUR LIVES IN MANY INDIRECT WAYS. WHAT ARE SOME OF THE WAYS WATER AFFECTS OUR LIVES?.

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AP CHEMISTRY STOICHIOMETRY UNIT NOV 27,2012

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  1. AP CHEMISTRY STOICHIOMETRY UNIT NOV 27,2012

  2. WATER IS ONE OF THE MOST IMPORTANT SUBSTANCES ON EARTH. IT IS ESSENTIAL FOR SUSTAINING REACTIONS THAT KEEP US ALIVE, BUT IT ALSO AFFECTS OUR LIVES IN MANY INDIRECT WAYS. WHAT ARE SOME OF THE WAYS WATER AFFECTS OUR LIVES?

  3. ELCTROLYTES AND NONELECTROLYTES

  4. WRITING EQUATIONS TO SHOW HOW ELECTROLYTES BREAK UP INTO IONS H2O LiCl Li+(aq) + Cl-(aq) H2O (NH4)3PO4  3 NH4+(aq) + PO43- (aq)

  5. STRONG ELECTROLYTES ARE SUBSTANCES THAT COMPLETELY DISSOCIATE IN AQUOUS SOLUTIONS STRONG ACIDS AND STRONG BASES ARE STRONG ELECTROLYTES WEAK ELECTROLYTES ONLY PARTIALLY DISSOCIATE IN AQUOUS SOLUTIONS WEAK ACIDS AND WEAK BASES ARE WEAK ELECTROLYTES

  6. Solvent for Life • Solution • Solute • solvent • Aqueous solution • Hydrophilic • Ionic compounds dissolve in water • Polar molecules (generally) are water soluble • Hydrophobic • Nonpolar compounds

  7. To perform a dilution, use the formula: M1V1 = M2V2 where M1 is the molarity of the stock solution and V1 is the volume of the stock solution. M2 is the molarity of the diluted solution and V2 is the volume of the diluted solution.

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