10:20 Exam I Key Spring 2017
(NOTE: the key was changed about 11:30 am on 2/15 for P5 and Y11; and both answers were accepted that
had the correct mole fraction since the negative exponents on the ppm was not correct prior to students leaving.)

Pink, v1 Blue, v2 Question Yellow, v3
6 pts each unless noted 6 pts each unless noted   6 pts each unless noted
A E (D=3pts) 1 E (A=3pts)
C E 2 D
E (D=3pts) E = 4 PTS 3 E
C B (D=3pts) 4 E
D = 4 PTS E 5 B
D A 6 B
E B (C=3pts) 7 A
A A 8 B
D (C=3pts) C 9 C, E
B (C=3pts) D, E 10 E(B=3pts)
A (E=3pts) E 11 B = 4PTS
A D 12 C
C, E E 13 E (D=3pts)
A B 14 B (A=3pts)
A D 15 E
A (B=3pts) A (E=3pts) 16 C
B B (D=3pts) 17 E (B=3pts)

TOTAL MULTIPLE CHOICE POINTS =
16 questions x 6 = 96 PTS AND 1 question x 4pt = 100 pts possible
It will be easier to count the number of 6 pt questions you got times 6, then add in the 4 pts question, then add in any partial credit.