Chapter 17 - CHEMISTRY The Central Science 9th Edition...

Info icon This preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17 Chapter 17 Additional Aspects of Aqueous Additional Aspects of Aqueous Equilibria Equilibria CHEMISTRY The Central Science 9th Edition
Image of page 1

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

View Full Document Right Arrow Icon
The solubility of a weak electrolyte is decreased by the addition of a strong electrolyte that has a ion in common with the weak electrolyte. The Common Ion Effect The Common Ion Effect
Image of page 2
Class Practice Problem Class Practice Problem What is the pH of a solution made by adding 0.30 mol of acetic
Image of page 3

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

View Full Document Right Arrow Icon
Equilibria of Acid-Base Equilibria of Acid-Base Buffer Systems Buffer Systems Why do some lakes become acidic when showered with acid rain, while others show no change in their pH? How does blood maintain a certain pH while in constant contact with countless cellular acid-base reactions that occur in the body? And, how can chemists maintain a certain pH level (i.e., + -
Image of page 4
Buffer work thorough the phenomenon known as the “Common-ion Effect”. A buffer must contain an acidic component to react with - - How Due Buffer Solutions Work How Due Buffer Solutions Work
Image of page 5

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

View Full Document Right Arrow Icon
Buffer Diagram, Figure 17.2 Buffer Diagram, Figure 17.2
Image of page 6
Buffers are solutions that resist changes in their pH caused by external force. A buffer consists of a mixture of a weak acid (HA) and a Buffered Solutions Buffered Solutions HX( aq ) H + ( aq ) + X - ( aq ) ] A [ ] HA [ ] H [ ] HA [ ] A ][ H [ - - a a K K = = + + HA (aq) HA (aq)
Image of page 7

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

View Full Document Right Arrow Icon
Class Practice Problem Class Practice Problem Calculate the pH of a buffer solution (a) consisting of 0.50 M
Image of page 8
Buffer capacity is the amount of acid or base neutralized by the buffer before there is a significant change in pH. Buffer capacity depends on the composition of the buffer. The greater the amounts of conjugate acid-base pair, the greater the buffer capacity. Buffered Capacity and pH Buffered Capacity and pH
Image of page 9

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

View Full Document Right Arrow Icon
The amount of strong acid or base added results in a neutralization reaction: - - 2 Adding Strong Acids or Adding Strong Acids or Bases to Buffers Bases to Buffers
Image of page 10
Class Practice Problem Class Practice Problem Calculate the pH of a buffer solution (a) consisting of 0.50 M
Image of page 11

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

View Full Document Right Arrow Icon
] HA
Image of page 12
Image of page 13
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