Soluble. All Group (I) metal (Alkali metals) are soluble. All Chlorides and Nitrates are soluble. Group (II) & (III) cations have a greater tendency to insoublity . Sulphates, phosphates and hydroxides are insoluble, unless combined with a Group(I) metal ion.
Distillation and Evaporation
Oil is insoluble in water because it is a nonpolar substance, while water is a polar substance. This means that oil molecules do not mix or dissolve in water, leading to the separation of the two substances.
Ag2CrO4 is insoluble in water.
oils are insoluble in water
- All carbonates (except ammonium, sodium & potassium carbonates) are insoluble - Lead, barium & calcium sulphates are insoluble - Lead & silver chlorides are insoluble
Sulfides are insoluble unless combined with Li, Na, K, Rb, Cs, and NH4. So, Na2S is soluble, and CuS is insoluble.
Hydrochloric acid (HCl) is used in the limit test of sulphates because it helps in the precipitation of sulphates as insoluble barium sulphate (BaSO4). This makes it easier to quantitatively determine the amount of sulphate present in a sample through gravimetric analysis. The addition of excess HCl ensures that all sulphates are converted to BaSO4, allowing for accurate measurement.
Soluble. All Group (I) metal (Alkali metals) are soluble. All Chlorides and Nitrates are soluble. Group (II) & (III) cations have a greater tendency to insoublity . Sulphates, phosphates and hydroxides are insoluble, unless combined with a Group(I) metal ion.
Sulphates are usually soluble in water except for Ag2SO4, BaSO4, CaSO4 and PbSO4 (lead sulphate). Hope that helps (: PbSO4 is sparingly soluble in water, its solubility at 298K is about 1.4E-4 mol/L, a very small value. So its not insoluble, it just has a very small solubility. Most sulphates of group 2 elements have low solubilities with the solubilities decreasing down the group, so that the sulphates of the top 2 elements, Be and Mg are reasonably soluble, then the solubilities decreasing for Ca, Sr and Ba. Other elements with very low solubilities for sulphates include Sb (antimony), Hg (mercury, Ag (silver) and Pb (lead). The solubility of lead sulphate can apparently be increased by additio0n of acid or ammonia or both (or ammonium salts).
BeSO4 is moderatetly water soluable. It is a metal sulfate compound which is used in water treatment plants. The mhydrogen atom is replaced by a metal compound. Unlike BaSO4 which appears to be water soluable at first but is not.
Calcium ions (Ca^2+) and magnesium ions (Mg^2+) are the two ions most commonly responsible for hard water. These ions can form insoluble salts with soap, leading to reduced lathering and the formation of scum in hard water conditions.
This substance is insoluble in water.
oils are insoluble in water
Distillation and Evaporation
For example stainless steel is practically insoluble in water.
Oil is insoluble in water because it is a nonpolar substance, while water is a polar substance. This means that oil molecules do not mix or dissolve in water, leading to the separation of the two substances.