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7 Questions Exam 1 - Organic Chemistry - 1998 | CHEM 113, Exams of Chemistry

University of Maryland Chemistry

Prof. John A. Tossell

Material Type: Exam; Professor: Tossell; Subject: Chemistry; University: University of Maryland; Term: Spring 1998;

Typology: Exams

Pre 2010

Uploaded on 05/09/2008

koofers-user-lb3 🇺🇸

10 documents

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Download 7 Questions Exam 1 - Organic Chemistry - 1998 | CHEM 113 and more Exams Chemistry in PDF only on Docsity! CHEM 113 - Dr. Tossell Name, Hour Exam #1 (even seats) Section Number 42_ March 4, 1998 T.A._________ (15 pts.) 1. What is the molar solubility of AgCl in 0.050 M AgNO3 solution? Ksp = 4 x 10' 11 for AgCl. (15 pts.) 2. What is the concentration of OH~ in a solution formed by the addition of 0.073 mol NtfyCKs) to 1.0 L of 0.075 M NH3(aq)? Assume the volume remains constant. Kb = 1.8 x 10~ 5 for -1- (15 pts.) 3. Indicate which of the following substances will form acidic, basic or neutral solutions in water: i) KC2H302 ii) CH3NH3Br iii) KNO2 For solutions which are not neutral write equations for the reactions which occur. (15 pts.) 4. In 0.032 M HCN solution, what is [H+]? Ka = 4.9 x 1Q- 10 for HCN -2-

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7 Questions Exam 1 - Organic Chemistry - 1998 | CHEM 113, Exams of Chemistry

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