Friday 5th September
TODAY WE ARE
LEARNING ABOUT
 What is a mole?
TODAY'S
KEY WORDS ARE
  • M_l_
  • R_l_t_v_  f_rm_l_    M_ss
  • m_l_c_l_s
    		•

    Memory Anchor:

    YOU WILL SHOW
    YOUR LEARNING BY...

    • Super Challenge:

      Stretch:

      Challenge:

    Key Questions:

    1. (HT only) Chemical amounts are measured in moles. What is the symbol of the unit for moles?
      • The symbol for the unit mole is mol.
    2. (HT only)How can we calculate the mass of one mole of a substance?
      • The mass of one mole of a substance is equal to its relative formula mass in grams. Eg. CO2 Mr = 44 : so 1 Mole of CO2 = 44g
    3. (HT only)If you have one mole each of two different substances, what will they share in common?
      • One mole of a substance contains the same number of the stated Particles, atoms, molecules or ions as one mole of any other substance.
    4. (HT only)What does Avogadro's constant represent?
      • The total number of Particles/atoms/molecules/ions within one mole of a substance.
    5. (HT only)What is the value of Avogadro's constant?
      • 1 mole = 6.02 x 1023 Particles/atoms/molecules/ions of a substance
    6. (HT only)Would there be any difference in the number of atoms in one mole of carbon (C) compared with the number of one mole of molecules of carbon dioxide (CO2)?
      • Measurement of amounts in moles can apply to atoms, molecules, ions, electrons, formulae and equations, for example that in one mole of carbon (C) the number of atoms is the same as the number of molecules in one mole of carbon dioxide (CO2).
    7. (HT only)Calculate the mass of one mole of C2H6
      • The relative formula mass (Mr) of C2H6 = 30 Therefore the mass of 1 mol C2H6 = 30g