ap chemistry samples and commentary from the 2019 exam … · title: ap chemistry samples and...
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2019
AP®
ChemistrySample Student Responses and Scoring Commentary
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Inside:
Free Response Question 1
R Scoring Guideline
R Student Samples
R Scoring Commentary
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AP® CHEMISTRY
2019 SCORING GUIDELINES
© 2019 The College Board.
Visit the College Board on the web: collegeboard.org.
Question 1
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AP® CHEMISTRY
2019 SCORING GUIDELINES
© 2019 The College Board.
Visit the College Board on the web: collegeboard.org.
Question 1 (continued)
1 mol
60.06 g
0.0897 mol = 17.9
0.00500 LM
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AP® CHEMISTRY
2019 SCORING GUIDELINES
© 2019 The College Board.
Visit the College Board on the web: collegeboard.org.
Question 1 (continued)
⋅
solnSD
2 2 2 2
2 2
2 2
(H NCONH ( )) (H NCONH ( ))
70.1 J/(mol K) (H NCONH ( )) 104.6 J/(mol K)
(H NCONH ( )) 174.7 J/(mol K)
solnS S aq S s
S aq
S aq
solnSD
solnS
‒
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AP® CHEMISTRY
2019 SCORING COMMENTARY
© 2019 The College Board.
Visit the College Board on the web: collegeboard.org.
Question 1
Note:
Overview
solnS
solnS
solnS
Sample: 1A
Score: 10
Sample: 1B
Score: 8
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AP® CHEMISTRY
2019 SCORING COMMENTARY
© 2019 The College Board.
Visit the College Board on the web: collegeboard.org.
Question 1 (continued)
Sample: 1C
Score: 6