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GCSEChemistryAQAFlashcardsQuantitative ChemistryAmount of Substance & Gas Volume

Amount of Substance & Gas Volume (AQA GCSE Chemistry)

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  • Define RTP.

    (Higher tier only)

    RTP is room temperature and pressure, specifically 20°C and 1 atmosphere.

  • What is the molar gas volume at RTP?

    (Higher tier only)

    The molar gas volume at RTP is 24 dm3 or 24,000 cm3.

  • True or False?

    The molar volume of a gas is independent of the type of gas.

    (Higher tier only)

    True.

    The molar volume of a gas is independent of the type of gas.

  • What is the equation for calculating the volume of a gas at RTP?

    (Higher tier only)

    The equation for calculating the volume of a gas at RTP is:

    Volume = Moles x Molar Volume

  • State the equation for molar gas volume using moles and volume.

    (Higher tier only)

    The equation for molar gas volume using moles and volume is:

    Molar gas volume = volume / moles

  • How do you calculate moles using volume and molar gas volume?

    (Higher tier only)

    The equation to calculate moles using volume and molar gas volume is:

    Moles = volume / molar gas volume

  • How much space, in dm3, does 1.5 moles of gas occupy?

    (Higher tier only)

    The amount of space, in dm3, that 1.5 moles of gas occupies is:

    • Volume = moles x molar gas volume

    • Volume = 1.5 x 24 = 36 dm3

  • A cylinder contains 300 dm3 of gas. What is this volume in cm3?

    (Higher tier only)

    A 300 dm3 cylinder contains 300 000 cm3 of gas.

  • True or False?

    Avogadro’s Law states that equal amounts of gases occupy the same volume of space at the same temperature and pressure.

    (Higher Tier Only)

    True.

    Avogadro’s Law states that equal amounts of gases occupy the same volume of space at the same temperature and pressure.

  • At room temperature and pressure, how many moles of gas are present in 48 dm3?

    (Higher tier only)

    At rtp, the number of moles of gas present in 48 dm3 is:

    • Moles = volume / molar gas volume

    • Moles = 48 / 24 = 2

  • What volume does one mole of any gas occupy at room temperature and pressure?

    (Higher Tier Only)

    One mole of any gas at room temperature and pressure occupies:

    • 24 dm3

    • 24 000 cm3

Previous:Concentration of SolutionsNext:Reactivity of Metals

    1. Topic 1

      Simple Model of the Atom

    2. Topic 2

      The Periodic Table

    3. Topic 3

      Properties of Transition Metals

    1. Topic 1

      Ionic, Covalent & Metallic Bond

    2. Topic 2

      Bonding & Substance Properties

    3. Topic 3

      Structure & Bonding of Carbon

    4. Topic 4

      Bulk & Surface Properties

    1. Topic 1

      Measurement, Mass & Equations

    2. Topic 2

      Calculating Mass of Substances

    3. Topic 3

      Yield & Atom Economy

    4. Topic 4

      Concentration of Solutions

    5. Topic 5

      Amount of Substance & Gas Volume

    1. Topic 1

      Reactivity of Metals

    2. Topic 2

      Reactions of Acids

    3. Topic 3

      Electrolysis

    1. Topic 1

      Exothermic & Endothermic Reactions

    2. Topic 2

      Chemical Cells & Fuel Cells

    1. Topic 1

      Rate of Reaction

    2. Topic 2

      Reversibility & Equilibrium

    1. Topic 1

      Hydrocarbons: Fuel & Feedstock

    2. Topic 2

      Reactions of Alkenes & Alcohols

    3. Topic 3

      Synthetic & Natural Polymers

    1. Topic 1

      Purity, Formulations & Chromatography

    2. Topic 2

      Identification of Common Gases

    3. Topic 3

      Methods of Identifying Ions

    1. Topic 1

      Formation of Earth's Atmosphere

    2. Topic 2

      CO2 & CH4 as Greenhouse Gases

    3. Topic 3

      Causes of Atmospheric Pollution

    1. Topic 1

      Global Reserves & Potable Water

    2. Topic 2

      Life Cycle Analysis & Recycling

    3. Topic 3

      Using Materials

    4. Topic 4

      Haber Process & NPK Fertilisers