Percent Composition Of Chemical Compounds

8 Questions

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Chemical Compound Quizzes & Trivia

Chemical compounds are made up of Chemical elements which have different numbers attached to them. This quiz is designed to test your knowledge on the chemical elements and as a result calculation of percent composition of chemical compounds.


Questions and Answers
  • 1. 
    What are the percent composition for SF2?
    • A. 

      55 % Sulfur and 45% Fluorine

    • B. 

      45.76% Sulfur and 54.39 % Fluorine

    • C. 

      33% Sulfur and 67% Fluorine

    • D. 

      49.2 % Sulfur and 50.8 % Fluorine

  • 2. 
    What is the percent composition of Ethyne? C2H2?
    • A. 

      92.31% Carbon and 7.76% Hydrogen

    • B. 

      82% Carbon and 18% Hydrogen

    • C. 

      82.7% Carbon and 17.3 % Hydrogen

    • D. 

      90% Carbon and 14 % Hydrogen

  • 3. 
    What is the percentage of Sulfur in SF2?
    • A. 

      32.06 % Sulfur

    • B. 

      25% Sulfur

    • C. 

      70.06 % Sulfur

    • D. 

      62.67 % Sulfur

  • 4. 
    . What is the empirical formula for a compound that contains 1.67 mole Carbon and 5.01 Moles of Hydrogen
    • A. 

      CH

    • B. 

      CH2

    • C. 

      C2H3

    • D. 

      CH3

  • 5. 
    • A. 

      HSO

    • B. 

      H2SO2

    • C. 

      H2SO4

    • D. 

      HSO2

  • 6. 
    What is the empirical formula for a compound that contains 22.00 % N and 78.0 % O
    • A. 

      N2O5

    • B. 

      NO3

    • C. 

      N2O3

    • D. 

      N)2

  • 7. 
    • A. 

      NaF3

    • B. 

      Na2F

    • C. 

      NaF

    • D. 

      NaF2

  • 8. 
    What is the empirical formula for: 85.60% C and 14.40% H?
    • A. 

      C2H3

    • B. 

      CH2

    • C. 

      CH3

    • D. 

      C2H4