chhw5 - valdez(vv689 Homework#5 Holcombe(52460 This...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
valdez (vv689) – Homework #5 – Holcombe – (52460) 1 This print-out should have 25 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Of the following, a solution with which pH would be the most basic solution? 1. 4.0 2. 11.2 correct 3. 7.0 4. 10.2 Explanation: The higher the pH of a solution the greater is its basicity. 002 10.0 points A solution of CO 2 dissolved in water is 1. acidic. correct 2. precipitated. 3. neutral. 4. basic. Explanation: 003 10.0 points A solution in which the molarity of the hy- droxide ion is larger than the molarity of the hydronium ion is termed 1. electrolyte. 2. neutral. 3. acidic. 4. amphiprotic. 5. basic. correct Explanation: 004 10.0 points Which of the following is true for strong acids? 1. They are weak electrolytes. 2. Aqueous solutions of strong acids have a high pH. 3. They are almost totally ionized or disso- ciated in aqueous solutions. correct 4. After they lose a proton, they give rise to strong conjugate bases. 5. They react only with weak bases. 6. They react only with strong bases. Explanation: The term ‘strong’ implies the species fully ionizes or dissociates; it does not imply any particular pH. 005 10.0 points If the pH of a solution is 3, then the hydro- nium ion concentration is ? the hydroxide ion concentration. 1. the same as 2. higher than correct 3. lower than Explanation: Since pH = 3 the solution is acidic and [H 3 O + ] > [OH ]. 006 10.0 points An Arrhenius base must contain ? and dis- sociate in aqueous solutions to produce ? . 1. the hydroxide ion or hydroxyl group; hy- droxide ions correct 2. hydrogen; hydrogen ions 3. hydronium ions; a solution whose pH is less than 7.0
Image of page 1

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

View Full Document Right Arrow Icon
valdez (vv689) – Homework #5 – Holcombe – (52460) 2 4. an unshared pair of electrons; a nonelec- trolytic solution 5. an unshared pair of electrons; an elec- trolytic solution Explanation: The Arrhenius theory of acids and bases defines bases as substances which in water give off hydroxide ions.
Image of page 2
Image of page 3
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