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Created page with "==Key Stage 4== ===Meaning=== An '''empirical formula''' is the simplest ratio of the different types of atom in a compound. ===About Empirical Formulae=== : The..."
==Key Stage 4==
===Meaning===
An '''empirical formula''' is the simplest [[ratio]] of the different types of [[atom]] in a [[compound]].
===About Empirical Formulae===
: The '''empirical formula''' of a [[compound]] may not be the same as the [[Chemical Formula|chemical formula]]:
*Ethane - [[Chemical Formula]]: C<sup>2</sup>H<sup>6</sup> '''Empirical Formula''': CH<sup>3</sup>
*Ethene - [[Chemical Formula]]: C<sup>2</sup>H<sup>4</sup> '''Empirical Formula''': CH<sup>2</sup>
: '''Empirical formulae''' are calculated from the amount of [[atom]]s in a [[Chemical Reaction|chemical reaction]].
: The number of [[atom]]s can be found if you know the [[mass]] of different [[element]]s and the [[Relative Atomic Mass|relative atomic mass]] of the [[element]]s in the [[Chemical Reaction|reaction]].
===Meaning===
An '''empirical formula''' is the simplest [[ratio]] of the different types of [[atom]] in a [[compound]].
===About Empirical Formulae===
: The '''empirical formula''' of a [[compound]] may not be the same as the [[Chemical Formula|chemical formula]]:
*Ethane - [[Chemical Formula]]: C<sup>2</sup>H<sup>6</sup> '''Empirical Formula''': CH<sup>3</sup>
*Ethene - [[Chemical Formula]]: C<sup>2</sup>H<sup>4</sup> '''Empirical Formula''': CH<sup>2</sup>
: '''Empirical formulae''' are calculated from the amount of [[atom]]s in a [[Chemical Reaction|chemical reaction]].
: The number of [[atom]]s can be found if you know the [[mass]] of different [[element]]s and the [[Relative Atomic Mass|relative atomic mass]] of the [[element]]s in the [[Chemical Reaction|reaction]].