Question

# A solution contains 1.25×10-2 M nickel(II) acetate and 1.02×10-2 M silver nitrate. Solid potassium hydroxide is...

A solution contains 1.25×10-2 M nickel(II) acetate and 1.02×10-2 M silver nitrate.
Solid potassium hydroxide is added slowly to this mixture.

A. What is the formula of the substance that precipitates first?

B. What is the concentration of hydroxide ion when this precipitation first begins?
[OH-] =

Ksp of Ni(OH)2 = 2.8 x 10-16

Ksp of AgOH = 2.0 x 10-8

A)

formula of the substance that precipitates first = Ni(OH)2

B)

Ni(OH)2   -------------> Ni2+   + 2 OH-

Ksp = [Ni2+][OH-]^2

2.8 x 10^-16 = (1.25 x 10^-2) x [OH-]^2

[OH-] = 1.50 x 10^-7 M

#### Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
• ### A solution contains 1.06x10-2 M aluminum nitrate and 1.01x102 M silver acetate. Solid potassium h...

A solution contains 1.06x10-2 M aluminum nitrate and 1.01x102 M silver acetate. Solid potassium 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] A solution contains 7.91x10-3 M potassium sulfide and 5.52103 M sodium hydroxide. Solid iron(II nitrate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula-...

• ### A solution contains 1.34*10-2 M nickel(II) nitrate and 8.49x10-3 M zinc acetate. Solid potassium cyanide is...

A solution contains 1.34*10-2 M nickel(II) nitrate and 8.49x10-3 M zinc acetate. 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

• ### 1.A solution contains 1.09×10-2 M potassium carbonate and 1.36×10-2 M ammonium sulfide. Solid copper(II) acetate is...

1.A solution contains 1.09×10-2 M potassium carbonate and 1.36×10-2 M ammonium sulfide. Solid copper(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 copper(II) ion when this precipitation first begins? [Cu2+] =  M 2. A solution contains 6.93×10-3 M cobalt(II) nitrate and 1.32×10-2 M zinc acetate. Solid potassium carbonate is added slowly to this mixture. A. What is the formula of the substance that...

• ### A solution contains 8.92×10-3 M chromium(III) nitrate and 6.95×10-3 M magnesium acetate. Solid potassium hydroxide is...

A solution contains 8.92×10-3 M chromium(III) nitrate and 6.95×10-3 M magnesium acetate. Solid potassium 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-] = _____M

• ### A solution contains 6.16×10-3 M potassium bromide and 1.32×10-2 M sodium hydroxide. Solid silver acetate is...

A solution contains 6.16×10-3 M potassium bromide and 1.32×10-2 M sodium hydroxide. Solid silver acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? B. What is the concentration of silver ion when this precipitation first begins? [Ag+] =

• ### A solution contains 1.10x10-2 M potassium phosphate and 5.69x10-3 M ammonium cyanide. Solid zinc acetate is...

A solution contains 1.10x10-2 M potassium phosphate and 5.69x10-3 M ammonium cyanide. Solid zinc acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = formula = B. What is the concentration of zinc ion when this precipitation first begins? [Zn2+] = C M A solution contains 9.17x10-3 M ammonium chloride and 9.44x10-M potassium sulfite. Solid silver nitrate is added slowly to this mixture. A. What is the formula of the...

• ### A solution contains 1.01×10-2 M potassium hydroxide and 6.56×10-3 M sodium sulfide. Solid copper(II) nitrate is...

A solution contains 1.01×10-2 M potassium hydroxide and 6.56×10-3 M sodium 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

• ### A solution contains 1.08x10-2 M zinc nitrate and 1.18x10-2 M manganese(II) acetate. Solid potassium sulfide is...

A solution contains 1.08x10-2 M zinc nitrate and 1.18x10-2 M manganese(II) acetate. Solid potassium sulfide is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = 1 B. What is the concentration of sulfide ion when this precipitation first begins? [S2] =

• ### A solution contains 6.56x10^-3 M silver acetate and 1.28x10^-2 M lead nitrate solid ammonium iodide is...

A solution contains 6.56x10^-3 M silver acetate and 1.28x10^-2 M lead nitrate solid ammonium iodide is added slowly to this mixture A solution contains 6.56x103 M silver acetate and 1.28x102 M lead nitrate. Solid ammonium iodide is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula B. What is the concentration of iodide ion when this precipitation first begins? [iodide] = |

• ### A solution contains 1.32×10-2 M silver nitrate and 5.58×10-3 M zinc acetate. Solid potassium phos...

A solution contains 1.32×10-2 M silver nitrate and 5.58×10-3 M zinc acetate. Solid potassium phosphate is added slowly to this mixture. What is the concentration of silver ion when zinc ion begins to precipitate? [Ag+] =  M A solution contains 1.05×10-2 M sodium hydroxide and 1.10×10-2 M potassium phosphate. Solid chromium(III) nitrate is added slowly to this mixture. What is the concentration of hydroxide ion when phosphate ion begins to precipitate? [hydroxide] =  M A solution contains 8.70×10-3 M barium...