Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bone of 2.07 x 10-33 at 25 °C. A. Write the reaction equation for the dissolution of Ca3(PO4)2 solid (in your solution s B. Calculate the solubility in mg/L at 25 °C in pure water. Neglect other competing equ C. Calculate the solubility in mg/L at 25 °C in the presence of 0.010 M CaCl₂. Neglect equilibria. Assume that 3s << 0.010 M. D. Is the assumption that s << 0.010 M valid? (Yes or No)

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Solubility Product Principle

Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bones and teeth, has a Ksp
of 2.07 x 10-33 at 25 °C.
A. Write the reaction equation for the dissolution of Ca3(PO4)2 solid (in your solution sheet).
B. Calculate the solubility in mg/L at 25 °C in pure water. Neglect other competing equilibria.
C. Calculate the solubility in mg/L at 25 °C in the presence of 0.010 M CaCl₂. Neglect other competing
equilibria. Assume that 3s << 0.010 M.
D. Is the assumption that s << 0.010 M valid? (Yes or No)
Transcribed Image Text:Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bones and teeth, has a Ksp of 2.07 x 10-33 at 25 °C. A. Write the reaction equation for the dissolution of Ca3(PO4)2 solid (in your solution sheet). B. Calculate the solubility in mg/L at 25 °C in pure water. Neglect other competing equilibria. C. Calculate the solubility in mg/L at 25 °C in the presence of 0.010 M CaCl₂. Neglect other competing equilibria. Assume that 3s << 0.010 M. D. Is the assumption that s << 0.010 M valid? (Yes or No)
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