Moles

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  • Moles
    • Molar Gas Equation
      • moles (mol) of a gas = volume (dm ) / 24 (dm  mol )
      • One mol of any gas, occupies the same volume at the same temperature and pressure (room)
        • 1 mol of anu gas occupies 24 dm
    • Atom Economy
      • %= mass of desired amount (g) / mass of reactants X 100
        • For mass, use Mr (molecular mass) in gmol-
    • Ideal Gas Equation
      • STP= Standard temperature and pressure
        • 1 mol of any gas occupies 22.7 dm
        • Temperature is considered 0 degrees Celsius and pressure 101 Kilo Pascals
      • RTP= Room temperature and pressure
        • 1 mol of anu gas occupies 24 dm
        • Temperature is considered 25 degrees Celsius and pressure 101 Kilo Pascals
      • pv=n RT
        • p= pressure in kilo pascals
        • v= volume in dm
        • n= number of moles in mol
        • R= the gas constant (8.314) given on exam sheet
        • T= temperature in Kelvin (+273 onto temperature in Celsius)
    • Percentage Yeild
      • %= actual mass of product/ theoretical mass of produce X 100
    • Moles in Solution
      • moles (mol) = concentration (mol dm ) X volume (dm )
    • Moles in an element or compound
      • moles (mol)= mass (g) / atomic, molecular mass (g mol )
    • Percentage uncertainty
      • %= uncertainty value / reading X 100
      • If reading are repeated, you must multiply the uncertainty value by the number of repetition times

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