ution contains 1.45×10-2 M ammonium sulfate and 1.29×10-2 M sodium fluoride. Solid calcium acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula =    B. What is the concentration of calcium ion when this precipitation first begins? [Ca2+] =  M

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A: Since you have posted multiple questions, we are entitled to answer the first only.

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A: Please find your solution below :

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Q: KSP for Copper Sulfide is: 7.9 × 10-37   KSP for Copper Hydroxide is: 1.6 × 10-19

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.