A solution contains 1.11x102 M ammonium carbonate and 1.23x10-2 M potassium phosphate. 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 is 0.010 M in both Br- and SO42-. A 0.250 M solution of lead (II) nitrate is slowly added to it. What is the concentration in the solution of the first ion when the second one starts to precipitate at 25 degrees Celcius? The answer should be 1.34 x 10-4 M

A solution contains 1.37×102 M lead nitrate and 7.70×10³ M magnesium acetate. Solid ammonium fluoride is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula B. What is the concentration of fluoride ion when this precipitation first begins? [F] = M

3. Determine if calcium carbonate will precipitate or not if a solution has 50ppm of calcium and 40ppm of carbonate ions. CaCO3(s) → Ca²+ + CO²¯‚pKs = 8.305

A solution contains 1.03×10 M sodium cyanide and 8.68×10M potassium sulfate. Solid silver nitrate 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*] =[ M

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A solution contains 1.13×10-² M nickel(II) acetate and 7.82x10-3 M zinc nitrate. Solid potassium cyanide is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = B. What is the concentration of cyanide ion when this precipitation first begins? [CN] = M

A solution contains 9.92×103 M ammonium carbonate and 9.27x103 M sodium hydroxide. Solid iron(II) 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 iron(II) ion when this precipitation first begins? [Fe?*] =[ M

At a certain temperature, chlorine gas and carbon monoxide react to form carbonyl chloride: Cl2(g) + 2 CO(g) 2 coC(g). When 3.0 x 10-3 M Cl2 is mixed with 0.030 M CO and 9.0 x 10-3 M COCI, the concentration of ccl decreases. Which statement below is true? а. Кс 100 c. Kc = 30 d. Kç > 30 e. Kç = 100 f. Kç < 100 Your answer is incorrect. The correct answer is: Kc < 30

A solution contains 1.45x10-2 M sodium carbonate and 9.94x10-3 M ammonium sulfide. Solid copper(II) nitrate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = B. What is the concentration of copper(II) ion when this precipitation first begins? [Cu²+] = M