AP Chemistrymediummcq1 pt
Which is the ion product Q for CaF₂ in a solution with [Ca²⁺] = 0.010 M and [F⁻] = 0.020 M?
A.4.0 × 10⁻⁶
B.2.0 × 10⁻⁴
C.4.0 × 10⁻⁸
D.8.0 × 10⁻⁶
Explanation
Core Concept
Q = [Ca²⁺][F⁻]² = 0.010 × (0.020)² = 4.0 × 10⁻⁶. Compare this with Ksp (3.9 × 10⁻¹¹) to predict precipitation.
Correct Answer
A4.0 × 10⁻⁶
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