Chapter 3, 9-5-08

Chapter 3, 9-5-08 - Chapter 3(pp.46-56 pH properties of...

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Chapter 3 (pp.46-56): pH, properties of water, and concentrations of solutions Learning objectives: Define: Acids, bases, and buffers . Be cognizant of what the pH scale is, and its application in expressing acidity. Explain the uniqueness of water in terms of its structure and different properties. Distinguish the difference between heat and temperature. Know how to calculate solution strengths by percent, molarity, & osmolarity.- know by monday Terms to know include: hydrophobic, hydrophilic, cohesion, adhesion, calorie, kilocalorie (aka Calorie – w/ capital ‘C’), specific heat, heat of vaporization… Water Molecule Water molecule ma and dissociate into a hydronium ion and a hydroxide ion In pure water (H+)=10^-7 M and (OH-)=10-7 and the product is 10^-14 The negative log10 (H+) refers to the acidity/alkalinity of a solution…ph Each ph unit represents a tenfold difference in H+ and OH- concentration Ina neutral solution (ph=7) (H+)=10^-7 and (OH-)=10^-7
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Chapter 3, 9-5-08 - Chapter 3(pp.46-56 pH properties of...

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