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Question 33 2 pts Which one of the following molecules is polar? (a) BC13 (b) Bel2...
Question 4 4 pts Identify which of the following molecules corresponds to the MS data below. box on zr or be at С D E 100 Molecular ion 116 mass 116 80 60 Rdative htensity 42 81 40 54 20- 0 20 8 8 30 140 160 180 200 100 120 m/z ОА OB Ос D ОЕ OF
Question 13 4 pts Which of the following hydrocarbons has one pi bond and one cycloalkane? A) C6H8 B) C5Hg C) C3H8 D) C4H8 OB ОА Ос OD 4 pts
Question 9 4 pts Which of the following species is amphoteric? A) CO32- B) HF C) NH* D) HPO 2 ОА OD OB Ос 4 pts Question 10
Ос OB ОЕ ОА D Question 23 4 pts Which sets of reagents would most readily undergo the following transformation? 7 anconote - Yo'l-oylering А B с None. All would liminate OD OA a O
Question 8 4 pts What types of splitting patterns would you expect in the proton NMR spectrum of the molecule shown below? Mark all that apply. es doublet singlet A triplet с quartet D sextet E B ОА OB Ос OD ОЕ Question 9 4 pts Which compound corresponds to the H NMR spectrum below? (Integral values are indicated above/beside signals.) 3 3 2 1 0 2 PPM FO 6 ho La А B с D E OB o D...
Question 5 For a chemical reaction, AH° 238 = +135.7 kJ and A Sº= +0.379 kJ/K. Calculate A Gº 800 A-167.5 kJ B.-132.8 kJ C. +133.9k D-212.8 kJ E.-192.3 kJ ОА OB ОС OD ОЕ Question 6 0.5 pt For a chemical reaction, Hº 238 = +135.7 kJ and A Sº = +0.379 kJ/K. At what temperature will A Gº=0? A. 213K B. 402K C.358 K D. 470K E. 251K ОА OB Ос OD ОЕ Question 7 0.5 For a...
Which of the following is trigonal planar AND polar? A SO3 OB. CHCl3 (C is central) Ос, BF3 D. CCI20 (C is central) QUESTION 35 or Molecules made up of three atoms will have a shape of A. linear; trigonal pyramidal B. bent; trigonal planar C. linear, bent D. tetrahedral; trigonal planar
Question 3 Which is the most stable imine? Bu NO Bu Bn Ph N Ph Pr Bn Ph b e OD ОА OB ОЕ Ос Question 3 Which is the most stable imine? Bu N' Bu Bn Ph Ph N N N N Ph Pr Bn Ph b с D ОА OB OE Ос
Question 1 1 pts Calculate A Gas for the reaction 4NH3(g) + 30,(g) —2N2 (g) + 6H2O() from AG® values in Table 6 of your chem-132 Tables. Time ELE Attempt 3 Minu A-1141.6 kJ B.-571.2 kJ C. 312.2 kJ D. 222.7 kJ E.-1357.0 kJ ОА OB Ос OD ОЕ Question 2 1 pts For a chemical reaction, if A Hºse is positive and AS is negative, will the reaction be spontaneous or nonspontaneous at LOW temperatures? spontaneous nonspontaneous No answer...
Which of the following structure(s) is/are aromatic? А) B) C) D) E) ОА ОВ Ос OD ОЕ