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AQA chemistry eqations

AQA chemistry eqations
6問 • 2年前
  • Ben Stone
  • 通報

    問題一覧

  • 1

    What formula is used to calculate the number of moles and Mr?

    Moles = Mass/mr

  • 2

    How is percentage yield calculated?

    (actual yield/theoretical yield) × 100

  • 3

    What eqation links the number of moles, volume and concentration?

    Number of moles = Volume × concentration

  • 4

    How is percentage atom economy calculated?

    (Mr of useful product/Mr of all products) × 100

  • 5

    How do you answer reacting mass questions?

    Find the mass ratio (The big number) Find the Mr for each side of the eqation Divide the mass that will react by the Mr

  • 6

    How do you calculate the amount of atoms or molecules?

    Number of A or M = Moles × Avagadro's constant 6.023×10²³

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    問題一覧

  • 1

    What formula is used to calculate the number of moles and Mr?

    Moles = Mass/mr

  • 2

    How is percentage yield calculated?

    (actual yield/theoretical yield) × 100

  • 3

    What eqation links the number of moles, volume and concentration?

    Number of moles = Volume × concentration

  • 4

    How is percentage atom economy calculated?

    (Mr of useful product/Mr of all products) × 100

  • 5

    How do you answer reacting mass questions?

    Find the mass ratio (The big number) Find the Mr for each side of the eqation Divide the mass that will react by the Mr

  • 6

    How do you calculate the amount of atoms or molecules?

    Number of A or M = Moles × Avagadro's constant 6.023×10²³