Chem 2 MIDTERM 1 Sample

Chem 2 MIDTERM 1 Sample - Midterm Exam 1 CHEM 002 Spring...

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Midterm Exam 1, CHEM 002 Spring 2007. (Chapters 2, 3, 4 and 6) Name: _________________________  Date: ____________ 1. Which of the solutions below will be a non-electrolyte? a)   0.050 M NaOH b)   0.050 M BaSO 4 c)   0.050 M methanol 2. The following systematic names: sulfur trioxide, sodium oxide, phosphorous  trifluoride and copper(I) nitrate are represented by which series of chemical  formulas?  a) S 2 O 4 , Na 2 O, PF 3  and Cu(NO 3 ) 2    b) SO 3 , NaO, PF 3  and CuNO 3 c) SO 2 , Na 2 O, PF 3  and Cu(NO 3 ) 2 d) SO 3 , Na 2 O, PF 3  and CuNO 3   3. What is the % mass of Ca in Ca(NO 3 ) 2 ? 4. Given the isotopic data below, what is the isotopic mass of  18 O if the average atomic  mass of Oxygen is15.999 amu?    Isotopes of O         % Abundance          Isotopic Mass 16 O 99.758 % 15.995 amu 17 O 0.038 % 16.999 amu   18 O 0.204 %    ?    amu  
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