Chemistry 1202 Test

Chemistry 1202 Test - Chem 1202 Exam G R 1 G0 RT ln Q 8 314...

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

View Full Document Right Arrow Icon
————————————————————————————————————— Chem 1202 Exam ————————————————————————————————————— G ± G 0 ² RT ln Q R ± 8.314 J/mol ± K 1 The weak acid HA has a pH of 3. 637 when the concentration is 0.058 M. What is the K a of this acid? ( A ) 9. 217 10 " 7 ( B ) 5. 1 10 " 7 ( C ) 1. 652 10 " 6 ( D ) 5. 354 10 " 6 ( E ) 2. 974 10 " 6 2 Which of the following salt solutions will be the most basic? ( A ) LiI ( B ) CaO ( C ) NH 4 C l ( D ) KBr ( E ) Ca NO 3   2 3 When an equal number of moles of NaOH is added to each of these acids the pH of the resulting mixture will be 7.0 Which acid is an exception to this rule? Hint: Write the formulas for the acids and think about what species will be present after equal moles of acid react with NaOH. ( A ) sulfuric acid ( B ) perchloric acid ( C ) hydrochloric acid ( D ) nitric acid ( E ) hydrobromic acid 4 100.0 mL of 0.1M NH 4 C e is titrated with 40.0 mL of 0.25M NaOH to the equivalence point. Which of these statements best describes the conditions at the equivalence point of this titration?
Image of page 1

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

View Full Document Right Arrow Icon
( A ) The pH is neutral because of the products C e " and water ( B ) The pH is basic because of the product NH 3 ( C ) The pH is acidic becasue of the excess NH 4 ² ( D ) The pH is acidic because of the product NH 2 " ( E
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