Why does solubility increase down Group 1?

Let us consider all the options, -In metal fluorides of group 1 and 2 , they have a common element fluorine, so the solubility depends on the size of the cation. On going down the group, the size of the cation increases and the salt becomes more ionic in nature. So, the solubility also increases down the group.

What is the solubility of alkali metals?

Unfortunately, most of these agents are ineffective in precipitating or extracting alkali metal ions from solution. Precipitation is especially difficult since most alkali metal salts usually are very water soluble.

Are alkali metal nitrates soluble in water?

carbonates of alkali metals, except Li2CO3, are soluble in water. Their solubilities increase on moving down the group. Carbonates of group-2 metals are almost insoluble in water and their solubilities further decrease on moving down the group. Nitrates of group -1 and group-2 metals are all soluble in water.

Why solubility of alkali metals decreases down the group?

Although both hydration and lattice energies of alkali metal fluorides decreases down the group and hydration energy dominates over lattice energy ,therefore, solubility increases down the group.

Is Group 1 water soluble?

All compounds of Alkali metal (Group 1, or, Group IA) cations, are soluble. EXCEPT those of calcium, barium and Alkali metal (Group 1, or, Group IA) cations; these soluble ones actually react with the water to form hydroxides (they are said to hydrolyse, and the reaction with water is known as a hydrolysis reaction ).

Which alkaline earth metal is the strongest reducing agent?

Barium
Barium being the largest non-radioactive atom in the group with the lowest ionization energy easily loses its electrons and is therefore the strongest reducing alkaline earth metal.

Why alkali metals are soluble in water?

ALkali metals are distinguished by having a single electron in its outermost (most reactive) ground state. Since water has a large dipole moment (the oxygen tends to be negative and the hydrogen atoms (which are located on one side of the oxygen tend to be positive) it is a good solvent of nearly all alkali salts.

Why are alkali metals so reactive?

All the alkali metals—lithium, sodium, potassium, and so on—have only one electron in their valence shell. Because this one electron is likely to be far from the nucleus, it feels little attraction to the atom. The result: Alkali metals tend to lose this electron when they participate in reactions.

How are metal nitrates formed?

Nitrates are salts or esters of nitric acid, HNO3, formed by replacing the hydrogen with a metal (e.g., sodium or potassium) or a radical (e.g., ammonium or ethyl).

Why does the solubility of alkaline earth metals?

a. Among alkaline earth metal hydroxides, the anion being common, the cationic radius will influence the lattice enthalpy. Since lattice enthalpy decreases much more than the hydration enthalpy with increasing ionic size, the solubility increases down the group (↓).

Why are alkali metals not found in nature?

-Alkali metals include the elements lithium, sodium, potassium, rubidium, cesium, and francium. -They are never found in nature uncombined because they are unstable and they react fast to other elements easily by losing the electron.

What are the melting points of alkali metal nitrates?

Alkali metal nitrates are chemical compounds consisting of an alkali metal ( lithium, sodium, potassium, rubidium and caesium) and the nitrate ion. Only two are of major commercial value, the sodium and potassium salts. They are white, water-soluble salts with melting points ranging from 255 °C ( LiNO

Which is the most soluble metal nitrate or acetate?

Virtually all metal nitrates and metal acetates are soluble. Metal halides are generally soluble, except for salts of Ag +, Pb 2+, Cu + and Hg +. Metal sulfates are generally soluble, except for salts of Ba 2+, Pb 2+ and Ca 2+.

Can a lead nitrate be soluble in water?

All nitrates are soluble, even if it’s a lead nitrate. As a rule of thumb, if it fits any of the following criteria, it is soluble: Acronym: NAACP #1 are all soluble no matter what. Salts with a group 1 cation (Ex: Li, Na, K, etc). Any ionic compound in which the anion is bromide, iodide, or chloride UNLESS the cation is mercury, lead, or silver.

Which is the least soluble alkali metal in water?

Lithium-ion is the most soluble and the solubility decreases with increasing size so that Cesium ion is the least water-soluble alkali metal ion. Solubility in water is related to the ionic nature and size.

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