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Relation between solubility and solubility product for a B3A2 salt such as calcium phosphate

The same question, asked 2 times: 10 May 2023 S2*, 20 Apr 2025 S1. Every wording below, oldest first.

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  1. Question 1

    10 May 2023 S2

    92
    Which from the following equations represents the relation between solubility (mol L−1^{-1}) and solubility product for a salt B3A2\text{B}_3\text{A}_2?

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  2. Question 2

    20 Apr 2025 S1

    51
    Solubility of Ca3(PO4)2Ca_{3}\left( PO_{4} \right)_{2} is ' S ' moldm−3moldm^{- 3}. Find solubility product.

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