stoichiometry
Chemical proportion calculations
Stoichiometry is the branch of chemistry dealing with the quantitative relationships between reactants and products in chemical reactions.
It calculates how much of each substance is needed or produced based on balanced equations: The stoichiometry shows we need two moles of hydrogen for every mole of oxygen.
The term extends to any precise proportional relationship between components in a system.
Complete neutralization moment
- end pointWhere something concludes
- standard solutionEstablished method for problem
- indicatorSign revealing status
- buretteCalibrated tube for titration
analyte · molarity · normality · concentration · dilution · aliquot · pipette · standardization
Subterranean insectivore
- AvogadroMolecular quantity's namesake
- empirical formulaSmallest whole-number element ratio
- molecular formulaNotation showing atomic composition
- reactantSubstance undergoing chemical change
product · conservation of mass · chemical equation · balanced equation · molar mass · hydrate · anhydrous · subscript
Combining parts into whole
- decompositionBreakdown into simpler parts
- combustionExothermic reaction with oxygen
- precipitationAtmospheric water deposit
- acid-baseProton donor-acceptor chemistry
redox · oxidation · reduction · neutralization · yield · reactant · product
Grams per mole measurement
- molecular weightTotal mass of atoms
- significant figuresDigits indicating measurement precision
- precisionAccuracy of measurement
- accuracyDegree of correctness
unit conversion · problem solving · calculation · arithmetic · interpolation · rounding · scientific notation
Comparative numerical relation
- proportionalityScaling relationship between quantities
- coefficientNumber multiplying a variable
equivalence point
Complete neutralization moment
- end pointWhere something concludes
- standard solutionEstablished method for problem
- indicatorSign revealing status
burette · analyte · molarity · normality · concentration · dilution · aliquot · pipette · standardization
mole
Subterranean insectivore
- AvogadroMolecular quantity's namesake
- empirical formulaSmallest whole-number element ratio
- molecular formulaNotation showing atomic composition
reactant · product · conservation of mass · chemical equation · balanced equation · molar mass · hydrate · anhydrous · subscript
synthesis
Combining parts into whole
- decompositionBreakdown into simpler parts
- combustionExothermic reaction with oxygen
- precipitationAtmospheric water deposit
acid-base · redox · oxidation · reduction · neutralization · yield · reactant · product
molar mass
Grams per mole measurement
- molecular weightTotal mass of atoms
- significant figuresDigits indicating measurement precision
- precisionAccuracy of measurement
accuracy · unit conversion · problem solving · calculation · arithmetic · interpolation · rounding · scientific notation
ratio
Comparative numerical relation
- proportionalityScaling relationship between quantities
- coefficientNumber multiplying a variable
stoichiometryflame tests
Chemical identification via combustion colors
stoichiometryguesswork
Conclusions drawn without proof
eyeballing · approximation · estimation · rule of thumb · imprecision
stoichiometryempiricism
Knowledge through observation