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CLEP Chemistry — Information & Free Practice

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CLEP Chemistry

Provider
College Board; ETS operates the testing platform as subcontractor
Format
Computer-delivered examination with multiple-choice questions; test-center or eligible remotely proctored delivery of the same examination
Exam questions
Total questions: 75; The total includes the scored and unscored questions.
Time limit
90 minutes
Passing score
ACE recommends a credit-granting scaled score of 50 for 6 semester hours; each institution sets its own credit-granting policy
Exam fee
$97 examination fee, plus any applicable test-center or remote-proctoring administration fee
Examination outline
  • Structure of Matter (20%)
    • Atomic theory and atomic structure
    • Chemical bonding
  • States of Matter (19%)
    • Gases
    • Liquids and solids
    • Solutions
  • Reaction Types (12%)
    • Acid-base reactions; Arrhenius, Brønsted-Lowry and Lewis concepts; amphoterism
    • Reactions involving coordination complexes
    • Precipitation reactions
    • Oxidation-reduction reactions
  • Equations and Stoichiometry (10%)
    • Ionic and molecular species; net-ionic equations
    • Stoichiometry: mass and volume relations and the mole concept
    • Balancing equations, including redox reactions
  • Equilibrium (7%)
    • Dynamic physical and chemical equilibrium; LeChâtelier's principle; equilibrium constants
    • Quantitative treatment
  • Kinetics (4%)
    • Concept of rate of reaction
    • Activation energy and the role of catalysts
    • Rate-determining step and reaction mechanism
  • Thermodynamics (5%)
    • State functions
    • First law
    • Second law
    • Free energy, equilibrium constants and electrode potentials
  • Descriptive Chemistry (14%)
    • Chemical reactivity and products of chemical reactions
    • Horizontal, vertical and diagonal periodic relationships
    • Main groups and transition elements
    • Organic chemistry
  • Experimental Chemistry (9%)
Examination sources