AP Chemistry Scoring Guidelines 2017 - Unauthorized · PDF fileTitle: AP Chemistry Scoring...

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Transcript of AP Chemistry Scoring Guidelines 2017 - Unauthorized · PDF fileTitle: AP Chemistry Scoring...

  • AP ChemistryScoring Guidelines

    2017 The College Board. College Board, Advanced Placement Program, AP, AP Central, and the acorn logo are registered trademarks of the College Board. Visit the College Board on the Web: www.collegeboard.org.

    AP Central is the official online home for the AP Program: apcentral.collegeboard.org

    2017

  • PV

    RT0.40 atm 25.0 L

    0.08206 (L atm)/(mol K) 393 K

    22 2

    2

    2

    2

    76.11 mol CS0.31 mol Cl = 7.9 g CS

    3 mol Cl 1 m

    3 g CS

    ol CS

  • (enthalpies of bonds broken) (enthalpies of bonds formed)S S-

  • 1/2

    0.693

    t

    0.693

    10. h

    0ln[A] ln[A] ln(0.1000) ln(0.0500)=10. h

    t

    t

    - -

  • 2 2

    2NO

    N O

    ( )

    ( )( )

    P

    P P

    2(0.122)

    (5.95)(1.55)

  • 2

    2

    [NO ]pH = p + log

    [HNO ]aK

    -

  • 2

    2

    [NO ]log

    [HNO ]

    -

    5

    10

  • 3 73 7

    3 7 3 7

    60.09 g C H OH 15.2 kJ1 mol C H OH 1661

    1 mol C H OH 0.55 g C H OH = kJ

    31.7 10 kJ=

  • 113 1.8 10

    4

    -

    0.100 L 41.65 10 mol

    1 L

    - 2

    2

    58.32 g Mg(OH)

    1 mol Mg(OH)

  • C

    mol

    J

    C

    1 kJ

    1000 J

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