{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

17 Acid-Base Salts & Calculations

17 Acid-Base Salts & Calculations - Lactic acid(pKa...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Lactic acid (pK a = 3.86) is found in milk. Tartaric acid (pK a1 = 2.98) is found in wine. Assuming the concentrations are the same and only these compounds contribute to the acidity, which would be the more acidic and have the lower pH? A) Milk B) Wine [HA] ] ][A O [H K 10 K - 3 a -pK a a lactic acid 2 Why some salts are basic. A salt composed of a conjugate base of a weak acid produces a basic solution, e.g. NaF. NaF(s) Na + (aq) + F - (aq)
Image of page 1

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

View Full Document Right Arrow Icon
3 Why some salts are acidic. A salt composed of a conjugate acid of a weak base produces an acidic solution, e.g. NH 4 Cl. NH 4 + (aq) + H 2 O NH 3 (aq) + H 3 O + (aq) NH 4 Cl(s) NH 4 + (aq) + Cl - (aq) 4 Why some oxides act as bases. Oxides of metals accept protons and neutralize acidic solutions.
Image of page 2
5 Why some oxides act as acids. Oxides of nonmetals combine with water to produce oxyacids. Power plants that burn coal produce SO 2 and consequently acid rain that has a negative impact on plant life. Sulfur dioxide + water sulfurous acid SO 2 (g) + H 2 O(l) H 2 SO 3 (aq) 6 Acid – Base Properties of Salts Salts are formed from acid base reactions. Four possibilities! Strong Acid + Strong Base Strong Acid + Weak Base Weak Acid + Strong Base Weak Acid + Weak Base
Image of page 3

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

View Full Document Right Arrow Icon
7 Strong Acid + Strong Base: NaCl HCl(aq) + NaOH(aq) Na+(aq) + Cl (aq) + H 2 O(l) Na + and Cl do not react with water.
Image of page 4
Image of page 5
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