Waiting
Login processing...

Trial ends in Request Full Access Tell Your Colleague About Jove
Capitolo 4
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…
Reagente limitante
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However,…
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
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are…
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
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
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
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of…
Reazioni di precipitazione
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction…
Reazioni di ossidazione-riduzione
Earth’s atmosphere contains about 20% molecular oxygen, O2, a chemically reactive gas that plays an essential role in the metabolism of…
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
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…
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…
Estrazione della lignina con alto contenuto di β-O-4 da etanolo lieve estrazione ed il relativo effetto sul rendimento depolimerizzazione
Lignin valorization strategies are a key factor for achieving more economically competitive biorefineries based on lignocellulosic biomass. Most of…
Produzione di sensori di temperatura del suolo e contenuto idrico semplice e poco costoso
Quantifying temperature and moisture at the soil surface is essential for understanding how soil surface biota respond to changes in the environment.…
Procedura sperimentale per studi di laboratorio di <em>In Situ</em> di masterizzazione: infiammabilità ed efficienza di combustione del petrolio greggio
A new method for the simultaneous study of the flammability and burning efficiency of fresh and weathered crude oil through two experimental…

Get cutting-edge science videos from JoVE sent straight to your inbox every month.

Waiting X
Simple Hit Counter