09-11-06 (5) O-Chem Outline

09-11-06 (5) O-Chem Outline - Overview Review Properties of...

Info icon This preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Overview September 11, 2006 Review Properties of Water Finish Water and pH Start Organic Compounds
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Solute Concentration in Aqueous Solutions Molecular mass (MW) Molar mass Mole (mol) 6.02 X 10 23 molecules (Avogadro’s Number) Molarity (M)
Image of page 2
Dissociation of Water Molecules Water can dissociate into hydronium ions and hydroxide ions H Hydronium ion (H 3 O + ) H Hydroxide ion (OH ) H H H H H H + +
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Dissociation of Water Molecules Water can dissociate into hydrogen ions and hydroxide ions (simplified version) In pure water, the concentration of each ion is 10 -7 M H 2 0 H + + OH -
Image of page 4
Acids and Bases Disrupt balance of [H + ] and [OH - ] Acid: A substance that increases the [H+] of a solution HCl HCl H+ + Cl- *Brackets designate a concentration
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Acids and Bases Disrupt balance of [H + ] and [OH - ] Base A substance that decreases the [H+] of a solution – NH 3 – NH 3 + H+ NH 4
Image of page 6
pH Scale In any aqueous solution at 25°C [H+] [OH-] = 10 -14 M *ALWAYS 10 -14 Neutral solution: both [H+] and [OH-] are 10 -7 M Ex: [H+] -3 + [OH-] ? ?= -11
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
pH Scale [H+] and [OH-] can vary by a factor of 100 trillion or more pH scale compresses range pH = - log [H+]
Image of page 8
pH Scale Neutral solution: pH = -log(10 -7 ) *pH is 7 Basic Soluton [H+] = 10 -12 M *pH is 12 Increasingly Acidic [H + ] > [OH ] Increasingly Basic [H + ] < [OH ] Neutral [H + ] = [OH ] Oven cleaner 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH Scale Battery acid Digestive (stomach) juice, lemon juice Vinegar, beer, wine, cola Tomato juice Black coffee Rainwater Urine Pure water Human blood Seawater Milk of magnesia Household ammonia Household bleach Figure 3.8
Image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
pH Scale
Image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern