Multiple Choice
Which of the following compounds is expected to be most soluble in benzene?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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According to general solubility rules, is (NH_4)_2CO_3 soluble or insoluble in water?
A
Soluble
B
Decomposes in water
C
Slightly soluble
D
Insoluble
Verified step by step guidance1
Recall the general solubility rules for ionic compounds in water. Ammonium salts (compounds containing the NH_4^+ ion) are generally soluble in water without exception.
Identify the ions in the compound (NH_4)_2CO_3: it contains ammonium ions (NH_4^+) and carbonate ions (CO_3^{2-}).
Apply the solubility rule that all ammonium salts are soluble, which means (NH_4)_2CO_3 should be soluble in water.
Consider that carbonate salts are often insoluble except when paired with alkali metals or ammonium, reinforcing that (NH_4)_2CO_3 is soluble.
Conclude that according to the general solubility rules, (NH_4)_2CO_3 is soluble in water.
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