3.5 Use of amount of substance in relation to volumes of gases

Cards (57)

  • One mole contains 6.022 x 10^23 particles, known as Avogadro's number.

    True
  • One mole of any gas at STP occupies a volume of 22.414 L.

    True
  • To convert mass to moles, you divide the mass by the molar mass.

    True
  • What is the molar volume of any gas at STP?
    22.414 L/mol
  • Match the substance with its molar mass in g/mol:
    Hydrogen ↔️ 1.008
    Water ↔️ 18.015
    Sodium Chloride ↔️ 58.44
  • What is the formula to convert mass to moles?
    moles = mass / molar mass
  • 0.5 moles of oxygen gas at STP has a volume of 11.207 L
  • The mass of one mole of a substance is known as its molar mass.
  • What formula is used to convert moles to volume of a gas at STP?
    Volume = Moles × Molar Volume
  • Avogadro's Law states that equal volumes of gases at the same temperature and pressure contain the same number of moles

    True
  • To convert mass to moles, use the formula: Moles = Mass / Molar Mass.
  • The molar volume of any gas at STP is 22.414
  • The molar mass of an element is numerically equal to its atomic mass in grams
  • What is the SI unit for measuring the amount of substance?
    Mole
  • What is the molar volume of a gas at standard temperature and pressure (STP)?
    22.414 L/mol
  • What are the temperature and pressure conditions at STP?
    0°C and 1 atm
  • Match the substance with its molar mass:
    Hydrogen ↔️ 1.008 g/mol
    Water ↔️ 18.015 g/mol
    Sodium Chloride ↔️ 58.44 g/mol
  • One mole of any substance contains 6.022 x 10^23 particles

    True
  • One mole of any gas at STP occupies 22.414 liters

    True
  • What is the molar volume of any gas at STP in L/mol?
    22.414
  • What is the molar volume of a gas at STP in liters per mole?
    22.414
  • To convert mass to moles, use the formula: Moles = Mass / Molar Mass.
  • To convert moles to volume at STP, use the formula: Volume = Moles × Molar Volume.
  • What is the value of Avogadro's number (NA)?
    6.022×10236.022 \times 10^{23}
  • What is the molar volume of any gas at STP?
    22.414 L/mol
  • What volume does 0.5 moles of oxygen gas occupy at STP?
    11.207 L
  • Steps to solve mass-volume stoichiometry problems at STP.
    1️⃣ Convert mass to moles using molar mass
    2️⃣ Convert moles to volume using molar volume
  • Gaseous reactions at STP use the molar volume of 22.414 L/mol to convert between moles and volume.
  • Avogadro's number is 6.022 x 10^23
  • 0.5 moles of oxygen gas at STP occupies a volume of 11.207 L
  • What is the numerical value of Avogadro's number?
    6.022 x 10^23
  • At STP, the molar volume of any gas is 22.414 L/mol
  • Match the compound with its molar mass:
    NaCl ↔️ 58.44
    H2O ↔️ 18.015
    CO2 ↔️ 44.01
  • Steps to solve mass-volume stoichiometry problems
    1️⃣ Convert mass to moles using molar mass
    2️⃣ Convert moles to volume using molar volume at STP
  • Steps to convert mass to volume of a gas at STP
    1️⃣ Convert mass to moles using molar mass
    2️⃣ Convert moles to volume using molar volume
  • What is the molar volume of a gas at STP?
    22.414 L/mol
  • When solving gaseous reactions at STP, convert given volumes to moles using the molar volume.
  • At STP, the temperature is 0°C (273.15 K) and the pressure is 1 atm (101.325 kPa)
    True
  • The molar volume of a gas at STP is 22.414 L/mol
    True
  • 0.5 moles of oxygen gas at STP will occupy a volume of 11.207 liters.