acid-base reactions and precipitation

reactions

A reaction or acid-base neutralization reaction is a chemical reaction that occurs between an acid and a base to produce a salt and water. The word "salt" describes any ionic compound whose cation is from a base (NaOH + Na) and the anion comes from an acid (HCl Cl-). Neutralization reactions are generally exothermic, meaning given off as heat energy.

Precipitation reactions are common in

chemistry, and processes for the separation of the

precipitate.Anion forms carbonate

precipitate with most cations, in many cases

precipitates as limescale upset formed in boiler

water distillers devices, pipes, plates, among others. Except alkali

metal carbonates are precipitated with the

other metals.Salts such as calcium chloride and sodium carbonate to ionize

dissolve.Therefore will precipitate

calcium carbonate, leaving in solution the

two other ions.

differentiate between and acid and base

a base of an acid is distinguished by the availability of electrons to join a proton, in

the example methylamine gave, unpaired electrons on nitrogen tend to capture a

proton, while the methyl group is an attractor basicity

decreases slightly.Gral, acidity increases with the

attractors groups, electronegativity, with the

atomic radius, with the stability of carbanion.

The acids or bases while many one learns to differentiate because they usually have similar structures.The acids can be:-hidràcidos-oxoácidosorganic acids

The bases can be:-hidróxidosWhy to choose common amines such is ammonium NH3.

Hydracids of the main strong

acid is HCl. Of the oxo acids,

the most common are

H2SO4 sulfuric acid and nitric acid HNO3. All organic acids

are weak. The same with

ammonia and its derivatives,

are all weak bases.

Hydroxides such as NaOH are

generally strong.

describe the meaning of and

acid - base reaction and precipitation

apply the acid reactions - based on industry

Acids and bases are in our everyday environment food, medicines, cleaning products, and many others. A generalized level in the industry, they are used to:

1- Verify that performs the transformation of matter.2- To quantify the volume obtained.3- Percentage error in the process.4- quality control process.5- View points where it can be lower costs.6- View points where there may be leakage of raw materials and losses.7- Preventing accidents.8- checkup production.9. Check if you can improve processes for higher performance.

qualitative analysis involves the detection of elements that are found in an organic compound. Qualitative analysis can only detect the presence of elements in the compound but cannot determine the percentage or amount of them in the compound. For example; carbon and hydrogen are detected with the help of Liebig’s method. Some other common elements which can be determined are oxygen, halogen, sulphur, nitrogen, halogens, sulphur and phosphorus.

The elemental analysis further

helps in the quantitative

analysis of them with the help of

other techniques.

Once we know the elemental

composition of any organic

compound, we can predict the

chemical and physical

properties of it with the help of

all possible molecular

structures. Let’s discuss some

common methods to detect the

presence of various elements

in any organic compound.

apply precipitation reactions in

qualitative and quantitative

analysis in the preparation of substances