SABIC CHEM 101 Chapter 4 - Part 1

SABIC CHEM 101 Chapter 4 - Part 1 - Chemistry101 Chapter4...

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Chemistry 101 Chapter 4 Types of Chemical Reac5ons & Solu5on Stoichiometry
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Solu%ons Solution: A homogeneous mixture composed of two or more substances Solvent: The liquid component of the solution Solute: The solid being dissolved
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Water – A Common Solvent One of the most important substances on Earth. Can dissolve many different substances. A polar molecule because of its unequal charge distribu>on. When a substance is dissolved in water, the resulting solution is said to be an Aqueous Solution
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Water – A Common Solvent NaCl is dissolved in water to form an aqueous sodium chloride solution The solid NaCl has broken up into the individual ions which have become hydrated
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Water – A Common Solvent NaCl is dissolved in water to form an aqueous sodium chloride solution The solid NaCl has broken up into the individual ions which have become hydrated When dissolving NaCl. . . Lose Gain 1) NaCl bonds in solid 1) Na + --OH 2 and Cl - --H 2 O 2) Some hydrogen bonds 2) increase disorder of system (Ch. 10) between H 2 O molecules (Ch.13) http://www.youtube.com/watch?v=EBfGcTAJF4o&feature=related
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Water – A Common Solvent A compound does not have to break into individual ions to be soluble in water. Ethanol is also soluble in water:
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Water – A Common Solvent Not everything is soluble in water: Nonpolar substances do not dissolve in water
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