Chem 2 FINAL KEY

Chem 2 FINAL KEY - Final Exam, CHEM 002 Spring 2007. Name:...

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Final Exam, CHEM 002 Spring 2007. Name: _________________________ Date: ____________ Please note that the chemical equations given below may not be balanced. 1) Which of the solutions below will have the lowest electrical conductivity? a) 0.050 M NaNO 3 b) 0.050 M AgCl c) 0.050 M Ethanol 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) A compound, whose molecular weight is 64.10 g/mol., contains only carbon, hydrogen and oxygen. The compound was analyzed and found to contain 12.61 % hydrogen and 37.47 % carbon. What is the molecular formula of the compound? a) CH 4 O b) C 2 H 8 O 2 c) CH 3 O d) CH 2 O e) C 2 H 6 O 2 4) How many mL of 0.250 M NaOH are required to completely react with 30.0 mL of 0.400 M HCl? NaOH (aq)
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Chem 2 FINAL KEY - Final Exam, CHEM 002 Spring 2007. Name:...

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