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• What is Avogadro's number?

  6.02 x 10^23
• What is relative formula mass (Mr)


  The combined relative atomic masses of elements in a molecule
• A mole of an element is...

  The relative formula mass of the element in grams
• What is the limiting reactant?

  The reactant that is completely used up in an experiment or the reactant that stops the reaction
• What is the equation for concentration?

  g/dm^3
• What is the Yield?

  The amount of product produced
• Why do chemical reactions never produce 100% yield?

  Not all the reactants reacted or the reaction is reversible
• What is sustainable production?

  Where Yield is maximised to reduce environmental damage
• Why is Avogadro's number important?

  It is the amount of atoms in a mole
• What does Mass / Mr equal

  Number of moles
• When calculating the mass of a product, first....

  Identify what the question is asking for
• To find out what the limiting reactant is:

  Write the balanced symbol equation then calculate the number of moles using the masses given and compare to the balanced equation
• 1dm^3 =

  1000cm^3
• How is percentage yield calculated?

  (amount of product produced)/(maximum possible product )×100
• How do you calculate atom economy?

  Mr(s) of the desired products/Mr(s) of the reactants x100
• What is Atom Economy?

  How efficient a chemical reaction is
• Is 100% atom economy possible?

  Yes
• How are the number of moles in a solution calculated?

  (concentration ×volume of solution (〖cm〗^3 ))/1000
• One mole of any gas at room temperature and pressure occupies a volume of?

  24dm^3
• One mole of any gas at room temperature and pressure occupies a volume of 24dm^3. What is this known as?


  The molar volume of a gas