According to Solubility guidelines chemistry reference table, which of these salts is least soluble in water?
a- PbCl2
b- RbCl
c- LiCl
d- FeCl2
To determine which salt is the least soluble in water according to the Solubility Guidelines Chemistry Reference Table, you can refer to the solubility rules.
The solubility rules state that salts of Group 1 elements (alkali metals) and ammonium (NH4+) are usually soluble in water. However, it is important to note that there are exceptions in some cases.
Looking at the options provided:
a- PbCl2: Lead(II) chloride is a salt, and according to the solubility rules, salts of lead are generally considered insoluble in water. Therefore, PbCl2 is likely to be less soluble in water.
b- RbCl: Rubidium chloride is a compound of the alkali metal rubidium. According to the solubility rules, salts of Group 1 elements are typically soluble in water. Therefore, RbCl is likely to be more soluble than PbCl2.
c- LiCl: Lithium chloride is also a salt, but given that it is a compound of a Group 1 element (lithium), it is expected to be soluble in water. Therefore, LiCl is likely to be more soluble than PbCl2.
d- FeCl2: Iron(II) chloride is a salt, but its solubility cannot be determined solely based on the solubility rules. Additional information is needed to determine the exact solubility of FeCl2 in water.
Based on the solubility rules, PbCl2 is the least soluble in water among the options provided.