Multiple Choice
At a certain temperature, which of the following best describes the solubility of strontium arsenate (Sr3(AsO4)2) in water according to general solubility rules?
35
views
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which compound is insoluble in water?
A
Pb3(PO4)2
B
Na2S
C
(NH4)2SO4
D
AgNO3
Verified step by step guidance1
Recall the general solubility rules for ionic compounds in water, which help predict whether a compound will dissolve or remain solid.
Identify the solubility of each compound in the given pairs based on these rules: for example, most sulfates (SO\_4^{2-}) are soluble except those of Pb^{2+}, Ba^{2+}, and Sr^{2+}.
Check the solubility of phosphates (PO\_4^{3-}), which are generally insoluble except those of alkali metals and NH\_4^{+}.
Evaluate each pair: PbSO\_4 and Pb\_3(PO\_4)\_2 both contain ions known to form insoluble salts, while the other pairs contain ions that typically form soluble compounds.
Conclude that the pair containing PbSO\_4 and Pb\_3(PO\_4)\_2 is insoluble in water based on these solubility rules.
2:07mWatch next
Master Solubility and Insolubility with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Solubility Rules practice set
Problem sets built by lead tutorsExpert video explanations