hw08 - padilla(tp5647 H08 Solubility McCord(53215 This...

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padilla (tp5647) – H08: Solubility – McCord – (53215) 1 This print-out should have 16 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points The compound M 2 X 3 has a molar solubility of 0.0520 M. What is the value of K sp for M 2 X 3 ? 1. 4 . 11 × 10 - 5 2. 0 . 000197 3. 0 . 000844 4. 3 . 8 × 10 - 7 5. 1 . 37 × 10 - 5 002 10.0 points A solution in equilibrium with solid barium phospate is found to have a barium ion con- centration of 5 × 10 - 4 mol/L and a K sp of 5 × 10 - 23 . Calculate the concentration of phosphate ion. 1. 6 . 32 × 10 - 7 mol/L 2. 3 . 16 × 10 - 10 mol/L 3. 5 . 77 × 10 - 11 mol/L 4. 2 . 50 × 10 - 64 mol/L 5. 4 . 64 × 10 - 7 mol/L 003 10.0 points Assume the molar solubility of silver chromate (Ag 2 CrO 4 ) is represented as x . Which of the following expressions correctly expresses the relationship between the molar solubility of silver chromate and the solubility product constant ( K sp ) for this compound? 1. K sp = 2 x 2 2. K sp = 2 x 3 3. K sp = 4 x 2 4. K sp = 4 x 3 5. K sp = x 2 004 10.0 points Which of the following compounds has the LOWEST molar solubility in water?
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