Yahoo Italia Ricerca nel Web

Risultati di ricerca

  1. Nitric acid can be made by reacting nitrogen dioxide, NO 2, with water. 3 NO 2 (g) + H 2 O (l) → 2 HNO 3 (aq) + NO (g) Nitric acid reacts with most metals, but the details depend on the concentration of the acid and the nature of the metal. Dilute nitric acid behaves as a typical acid in its reaction with most metals.

  2. Carbonic acid is a chemical compound with the chemical formula H2CO3 H 2 CO 3 and is also a name sometimes given to solutions of carbon dioxide in water (carbonated water), because such solutions contain small amounts of H2CO3(aq) H 2 CO 3 ( aq). Carbonic acid, which is a weak acid, forms two kinds of salts: the carbonates and the bicarbonates.

  3. In database systems, ACID (Atomicity, Consistency, Isolation, Durability) refers to a standard set of properties that guarantee database transactions are processed reliably. ACID is especially concerned with how a database recovers from any failure that might occur while processing a transaction. An ACID-compliant DBMS ensures that the data in ...

  4. process in which an acid is ionized by losing protons sequentially. triprotic acid. acid that contains three ionizable hydrogen atoms per molecule; ionization of triprotic acids occurs in three steps. 15.7: Polyprotic Acids is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

  5. This page titled 7.1: Brønsted-Lowry Definition of Acids and Bases is shared under a CC BY-NC-SA license and was authored, remixed, and/or curated by Anonymous. A Brønsted-Lowry acid is a proton donor, and a Brønsted-Lowry base is a proton acceptor. Brønsted-Lowry acid-base reactions are essentially proton transfer reactions.

  6. 26 mag 2024 · amino acid, any of a group of organic molecules that consist of a basic amino group (―NH 2 ), an acidic carboxyl group (―COOH), and an organic R group (or side chain) that is unique to each amino acid. The term amino acid is short for α-amino [alpha-amino] carboxylic acid. Each molecule contains a central carbon (C) atom, called the α ...

  7. addition of strong acid produces weak acid: H 3 O + + CH 3 CO 2 → CH 3 CO 2 H + H 2 O; There are two simple ways to make a buffered solution. Consider an acetic acid/acetate buffer solution. make equal molar solution of acetic acid and sodium acetate, and mix them, monitoring pH with a pH meter, until the desired pH is reached (+/- 1 unit ...