A 3.682-g sample of KClO₃ is dissolved in enough water to give 375.mL of solution.What is the chlorate ion concentration in this solution? A)9.82 M B)1.60 × 10^-1 M C)8.01 ×10^-2 M D)9.82 × 10^-3 M E)1.60 × 10^-2 M

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Quizplus · Accepted Answer

The molar mass of KClO₃ is approximately 122.55 g/mol. The moles of KClO₃ are calculated as 3.682 g / 122.55 g/mol = 0.03005 mol. Since KClO₃ dissociates into one K⁺ and one ClO₃⁻ ion, the concentration of ClO₃⁻ is the same as the concentration of KClO₃. Therefore, the concentration is 0.03005 mol / 0.375 L = 0.0801 M, which is 8.01 × 10⁻² M.

A 3682-G Sample of KClO3 Is Dissolved in Enough Water to to Give

A 3682-G Sample of KClO₃ Is Dissolved in Enough Water to to Give