chm1045test01asoln

chm1045test01asoln - GENERAL CHEMISTRY 1 FIRST HOUR EXAM...

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GENERAL CHEMISTRY 1 FIRST HOUR EXAM FEBRUARY 2, 2007 Name SOLUTIONS Panthersoft ID ________________________________________________ Signature ________________________________________________ Part 1 ________________ (20 points) Part 2 ________________ (44 points) Part 3 ________________ (36 points) TOTAL________________ (100 points) N A = 6.022 x 10 23 ° C = ( 5 / 9 ) ( ° F – 32) ° F = ( 9 / 5 )( ° C) + 32 M i V i = M f V f 1 amu = 1.661 x 10 -27 kg ° C = K - 273.15 K = ° C + 273.15 Part 1. Multiple choice. Circle the letter corresponding to the correct answer. There is one and only one correct answer per problem. [4 points each]
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1) 4.55 microfarad ( μ F) = __________ millifarad (mF). a) 4.55 x 10 3 mF b) 4.55 x 10 -3 mF B c) 4.55 x 10 -6 mF d) 4.55 x 10 -9 mF e) none of the above 2) 8.865 + 93.1 + 0.46383 = __________ (to the correct number of significant figures). a) 102. b) 102.4 B c) 102.42 d) 102.43 e) 102.42883 3) Which of the following particles is found in nucleus of an atom? a) electron b) neutron E c) proton d) both a and c e) both b and c 4) Which of the following is not a possible empirical formula for a pure chemical substance containing carbon (C), hydrogen (H), and oxygen (O)? a) CH 4 O 2 b) C 2 H 4 O 2 B c) C 3 H 6 O d) C 3 H 6 O 2 e) None of the above are possible empirical formulas 5) Ions of an element can be formed from atoms of the element by which of the following processes? a) Removing one or more electrons from the atom.
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chm1045test01asoln - GENERAL CHEMISTRY 1 FIRST HOUR EXAM...

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