Flashcards
Empirical and molecular formulae
Cards in this deck (8)
- 1What is the empirical formulae?The formula that represents the simplest ratio of the atoms of each element present in a compound.
- 2What is the empirical formulae of Carbon Dioxide, and what does it tell us?For every one carbon atom, their is 2 oxygen atoms.
- 3Step 1 for finding the empirical formula?Find the masses of each of the elements present in a compound.
- 4Step 2 finding the empirical formula?Work out the number of moles of atoms of each element.
- 5Number of moles =Mass of element/ mass of 1 mol of element
- 6Step 3 for for finding the empirical formula?Convert the number of mols of each element into a whole number ratio.
- 7What is the molecular formula?It gives the actual number of atoms of each element in one molecule of the compound.
- 8For example, if the molecular formula is C*2H*6 what is the molecular formula?CH*3
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- As Level Chemistry Flashcards on Empirical and molecular formulae, created by Nina hallwood on 03/01/2014.
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- Nina hallwood
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