4. Stoichiometry

4. Stoichiometry

4. Stoichiometry -In a symbol equation the number of atoms on each side of the equation should balanced for each element. -In an equation, remember to write the symbol for the state (aqueous, solid, liquid, gas) in brackets, and the oxidation state of a transition...

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4.1 The mole concept

A mole is the Ar or Mr expressed in grams e.g. 1 mole of Carbon-12 is equal to 12 grams. It is equal to 6.02 × 1023 atoms, this number is called Avogrado’s constant. 1 mole of a gas at RTP (25°C and 1atm or room temperature and pressure) occupies a volume of 24dm3....

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