Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
Mole |
Amount of a substance (ions molecules atoms electrons formulas) One mole is 6.02✖️10^23 particles- avagadros constant |
|
How to find the number of particles |
No of particles=no of moles✖️avagadros constant |
|
How to find no of moles |
Mr ✖️moles=mass(g) |
|
Concentration equation |
No of moles=c✖️v(cm3)/1000 |
|
Ideal gas equation |
pV=nRT P=(kPa✖️1000=Pa) V=m3 R=8.31JK-1mol-1 T=kelvin(+273+C)
|
|
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 |
|
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 |
|
Empirical formula |
The simplest whole number ratio of atoms of each element in a molecule |
|
Molecular formula |
The actual number of atoms in a compound |
|
Percentage yield |
Percentage yield=actual yield/theoretical yield ✖️100 |
|
Atom economy |
=desired product/sum of masses of reactants |
|
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 |