Consider Mixing 5

question 186

Multiple Choice

Consider mixing 5.1×10 ^{- 6} moles of Na₂SO₄ and 1.2×10 ^{- 5} moles of BaCl₂ in enough water to form 1.0 L of an aqueous solution. BaSO₄ has limited solubility with a K _sp = 1.1×10 ^{- 10}. Na₂SO₄ (aq) + BaCl₂ (aq) →BaSO₄ (s) + 2 NaCl (s) Which statement below is true regarding the solubility reaction quotient, Q _sp, and whether or not a precipitate of BaSO₄ will form?

• A) Q _sp < K _sp and a precipitate of BaSO₄ will form.
• B) Q _sp > K _sp and a precipitate of BaSO₄ will form.
• C) Q _sp = K _sp and a precipitate of BaSO₄ will form.
• D) Q _sp < K _sp and a precipitate of BaSO₄ will not form.
• E) Q _sp > K _sp and a precipitate of BaSO₄ will not form.

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