10.03.11 KEYWORDS
· Conservation of Mass –No mass is made or destroyed in a reaction
· Relative Formula Mass – Mr = Mass (in grams) of 1 mole of a substance
· Mole – Amount of substance that contains Avogadro’s Number of particles
· Avogadro’s Number – 6 x 10 23
· Limiting Reactant –reactant that will run out during the reaction, making it stop
· dm3 – a litre
· cm3 – a millilitre
· Concentration – amount of substance in 1 dm3 of a solution (usually in mol/dm3, sometimes g/dm3)
· Molar Gas Constant – volume occupied by 1 mole of any gas (24dm3 at 20oC & 1 atmosphere pressure)