Chemical Calculations (Mole Concept)
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What you'll learn
Chemical formulae and balanced equations, relative atomic and molecular mass, the mole, and calculations involving mass, gas volume, concentration, percentage yield and purity.
- Chemical formulae are deduced from ratios or ionic charges
- A balanced equation has the same number of each atom on both sides
- Relative atomic mass and relative molecular/formula mass
- The mole links particle count to mass
- Gas volume at room temperature and pressure (r.t.p.)
- Percentage mass of an element in a compound
- Empirical formula is the simplest whole-number mole ratio
- Molecular formula is a whole-number multiple of the empirical formula
- The mole ratio from a balanced equation drives reacting-mass and reacting-volume calculations
- Limiting reactant, concentration, percentage yield and percentage purity