An unknown cation X3+ combines with the sulfate ion to form an ionic compound. The formula of this compound is best represented by which of the following:Question 2AnswerX2(SO4)3X3(SO4)2X3SO4X3(SO3)2X2SO3
Question
An unknown cation X3+ combines with the sulfate ion to form an ionic compound. The formula of this compound is best represented by which of the following:Question 2AnswerX2(SO4)3X3(SO4)2X3SO4X3(SO3)2X2SO3
Solution
The formula of an ionic compound is determined by the charges of the ions involved. The cation X has a charge of +3 (X3+) and the sulfate ion has a charge of -2 (SO4^2-).
In order to balance the charges in the compound, we need two X ions (each with a charge of +3, for a total charge of +6) and three sulfate ions (each with a charge of -2, for a total charge of -6).
Therefore, the formula of the compound is X2(SO4)3.
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