{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Fakhreddine_HW5 - tu(pyt67 Homework 5 Fakhreddine(52425...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
tu (pyt67) – Homework 5 – Fakhreddine – (52425) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 1.0 points I found some ammonium nitrate sitting in a can. I mixed it with some water I had sitting in a pan. It really mixed up nicely, I thought that I would say the solution was ? on this lovely day. 1. now acidic correct 2. still neutral 3. now just basic Explanation: Ammonium nitrate is the salt of a weak base and is therefore an ACIDIC salt. 002 1.0 points I found some potassium chlorate from inside our lab. I measured some out on a big marble slab. I dissolved it in water, and took a breath of fresh air. The pH No big surprise there. 1. was now basic. 2. remained neutral. correct 3. was acidic. Explanation: Potassium chlorate is the salt of a strong acid and strong base and is therefore a NEU- TRAL salt. 003 1.0 points The term “ K a for the ammonium ion” de- scribes the equilibrium constant for which of the following reactions? 1. NH + 4 + H 2 O NH 3 + H 3 O + correct 2. NH 4 Cl(solid) + H 2 O NH + 4 + Cl - 3. NH + 4 + OH - NH 3 + H 2 O 4. NH 3 + H 3 O + NH + 4 + H 2 O 5. The term is misleading, because the am- monium ion is not an acid. 6. NH 3 + H 2 O NH 4 + + OH - Explanation: 004 1.0 points The generic equation Base - + H 2 O HBase + OH - can be used to account for the pH of which salt? 1. NaHCOO correct 2. BaBr 2 3. KClO 3 4. NH 3 5. ZnCl 2 Explanation: This hydrolysis equation applies only to anions from weak acids. HClO 3 , HBr and HCl are strong acids. NH 3 is a weak base.
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
Image of page 2
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