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Capitolo 4

Quantità chimiche e reazioni acquose

Stechiometria di reazione
Stechiometria di reazione
A balanced chemical equation provides a great deal of information in a very succinct format. Chemical formulas provide the identities of the reactants and ...
Reagente limitante
Reagente limitante
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in ...
Resa di reazione
Resa di reazione
The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The ...
Proprietà generali delle soluzioni
Proprietà generali delle soluzioni
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are composed ...
Concentrazione e diluizione della soluzione
Concentrazione e diluizione della soluzione
The relative amount of a given solution component is known as its concentration. Often, though not always, a solution contains one component with a ...
Soluzioni elettrolitiche e non elettrolitiche
Soluzioni elettrolitiche e non elettrolitiche
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a ...
Solubilità dei composti ionici
Solubilità dei composti ionici
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. ...
Reazioni chimiche in soluzioni acquose
Reazioni chimiche in soluzioni acquose
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical ...
Reazioni di precipitazione
Reazioni di precipitazione
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs ...
Reazioni di ossidazione-riduzione
Reazioni di ossidazione-riduzione
Oxidation–Reduction Reactions Earth’s atmosphere contains about 20% molecular oxygen, O2, a chemically reactive gas that plays an essential ...
Numeri di ossidazione
Numeri di ossidazione
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the ...
Acidi, basi e reazioni di neutralizzazione
Acidi, basi e reazioni di neutralizzazione
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to ...
Reazioni di Sintesi e di decomposizione
Reazioni di Sintesi e di decomposizione
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The ...
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