A solution contains 1.42×10-2 M ammonium sulfate and 5.66x10-³ M sodium chromate. Solid barium 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 barium ion when this precipitation first begins? [Ba²+] M

A solution contains 6.69x10-3 M silver nitrate and 8.46x103 M calcium acetate. Solid sodium hydroxide is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = B. What is the concentration of hydroxide ion when this precipitation first begins? [OH-] 2.2x10^-12 M

a. A 24.4 mL sample of a 0.487 M aqueous hydrocyanic acid solution is titrated with a 0.409 M aqueous barium hydroxide solution. What is the pH at the start of the titration, before any barium hydroxide has been added?pH =  b. What is the pH at the equivalence point in the titration of a 26.9 mL sample of a 0.401 M aqueous hydrofluoric acid solution with a 0.366 M aqueous sodium hydroxide solution?pH = ? c. When a 19.3 mL sample of a 0.459 M aqueous acetic acid solution is titrated with a 0.496 M aqueous potassium hydroxide solution, what is the pH at the midpoint in the titration?pH = ?

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

A solution contains 1.10×10-2 M potassium cyanide and 9.32×10-3 M sodium hydroxide. Solid zinc nitrate is added slowly to this mixture. What is the concentration of hydroxide ion when cyanideion begins to precipitate? [hydroxide] = M

A solution contains 9.47x10^-3 M nickel (II) acetate and 1.27x10^-2 M zinc nitrate. Solid potassium hudroxide is added slowly to this mixture. what is the concentration of zinc ion when nickel ion begins to precipitate? [Zn^2+]=_________M

A solution contains 6.32x10-3 M ammonium iodide and 5.98×10-3 M sodium chromate. Solid silver 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 silver ion when this precipitation first begins? [Ag*] = Retry Entire Group 9 more group attempts remaining Submit Answer

A solution contains 1.45×102 M sodium sulfate and 6.19×10-3 M potassium phosphate. Solid lead nitrate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = PbSO B. What is the concentration of lead ion when this precipitation first begins? [Pb2*] = 1.28x10^-6 M

A solution contains 7.34x103 M sodium carbonate and 6.93x10-3 M ammonium iodide. Solid lead 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 lead ion when this precipitation first begins? [Pb2*) =| M