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12 Cards in this Set
- Front
- Back
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Mole |
Amount of a substance (ions molecules atoms electrons formulas) One mole is 6.02✖️10^23 particles- avagadros constant |
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How to find the number of particles |
No of particles=no of moles✖️avagadros constant |
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How to find no of moles |
Mr ✖️moles=mass(g) |
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Concentration equation |
No of moles=c✖️v(cm3)/1000 |
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Ideal gas equation |
pV=nRT P=(kPa✖️1000=Pa) V=m3 R=8.31JK-1mol-1 T=kelvin(+273+C)
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Ionic equation |
Describes the chemical change by showing the reacting ions in solution . Electrolytes written as separate anions and cations allowing spectator ions to be cancelled out .atoms and charges must balance |
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Ionic equation |
Describes the chemical change by showing the reacting ions in solution . Electrolytes written as separate anions and cations allowing spectator ions to be cancelled out .atoms and charges must balance |
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Empirical formula |
The simplest whole number ratio of atoms of each element in a molecule |
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Molecular formula |
The actual number of atoms in a compound |
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Percentage yield |
Percentage yield=actual yield/theoretical yield ✖️100 |
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Atom economy |
=desired product/sum of masses of reactants |
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Advantages of high economy |
Small quantity of saw materials used Large amount of desired product- little waste Less money spent on departing desired product with waste Raw material in limited supply-efficiently used Good for the environment Easier cheaper ways to mass produce medicine and useful chemicals-products sold for lower prices and can be available to everyone |
