Multiple Choice
According to solubility rules, which statement best describes the solubility of Na3PO4 in 200 g of water at 40 °C?
3
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
According to general solubility rules, which statement best describes the solubility of Na3PO4 in water at 40°C?
A
Na3PO4 is moderately soluble in water at 40°C.
B
Na3PO4 is only slightly soluble in water at 40°C.
C
Na3PO4 is highly soluble in water at 40°C.
D
Na3PO4 is insoluble in water at 40°C.
Verified step by step guidance1
Recall the general solubility rules for ionic compounds in water, which state that most sodium (Na⁺) salts are soluble regardless of the anion.
Identify the compound Na₃PO₄ as sodium phosphate, which contains sodium ions (Na⁺) and phosphate ions (PO₄³⁻).
According to the solubility rules, all sodium salts are highly soluble in water at typical temperatures, including 40°C.
Understand that phosphate salts of other cations may be less soluble, but sodium phosphate remains highly soluble due to the presence of sodium ions.
Conclude that Na₃PO₄ is highly soluble in water at 40°C based on these general solubility principles.
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