11h3 Calculation In Chemistry IGCSE

8 Questions | Total Attempts: 59

SettingsSettingsSettings
11h3 Calculation In Chemistry IGCSE

In this quiz you will be asked to answer questions about moles, relative formula mass and balancing chemical equations. All questions are multiple choice. Do not attempt the quiz more than once. . . GOOD LUCK!


Questions and Answers
  • 1. 
    The formula of Iron III hydroxide is 
    • A. 

      Fe(OH)3

    • B. 

      Fe(OH)2

    • C. 

      Fe(OH)4

    • D. 

      FeOH

  • 2. 
    The relative formula mass of Calcium hydroxide Ca(OH)2 is
    • A. 

      74g

    • B. 

      57g

    • C. 

      74amu

    • D. 

      57amu

  • 3. 
    The mass of 2 mol of carbon dioxide CO2 is
    • A. 

      88 amu

    • B. 

      44g

    • C. 

      88 g

    • D. 

      44 amu

  • 4. 
    How many moles are there in 9.8g of sulphuric acid H2SO4
    • A. 

      1 mol

    • B. 

      2 mol

    • C. 

      0.1 mol

    • D. 

      0.2 mol

  • 5. 
    The number of atoms found in one mole of silver atoms is called
    • A. 

      Wissam's number

    • B. 

      Avogadro's number

    • C. 

      Newton's number

    • D. 

      Pascal's number

  • 6. 
    When the following equation is balanced, the sum of all coefficients will beH2  +  O2  --->   H2O
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 7. 
    When the following chemical equation is balanced, the coefficients will be respectivelyN2  +  H2  -->  NH3
    • A. 

      1 - 2 - 3

    • B. 

      3 - 2 - 1

    • C. 

      1 - 3 - 2

    • D. 

      0 - 3 - 2

  • 8. 
    5 moles of C6H12O6 has a mass
    • A. 

      90

    • B. 

      900

    • C. 

      9

    • D. 

      0.9