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11 Dec 2019


A solution contains 1.36×10-2 M lead nitrate and 8.64×10-3 M silver acetate.
Solid ammonium chromate is added slowly to this mixture.

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

formula =



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

M

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Beverley Smith
Beverley SmithLv2
13 Dec 2019

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Related questions


Show transcribed image text

OWL question so its 3 parts

Part A

A solution contains 9.25×10-3 M aluminum nitrate and 5.90×10-3 M copper(II) acetate. Solid sodium hydroxide is added slowly to this mixture. What is the concentration of aluminum ion when copper(II) ion begins to precipitate?

[Al3+] = M

Part B

A solution contains 1.29×10-2 M iron(II) acetate and 9.60×10-3 M manganese(II) nitrate.
Solid potassium hydroxide is added slowly to this mixture.

What is the concentration of iron(II) ion when manganese(II) ion begins to precipitate?
[Fe2+] = M

Part C

A solution contains 1.02×10-2 M ammonium carbonate and 5.02×10-3 M sodium phosphate.
Solid silver nitrate is added slowly to this mixture.

What is the concentration of phosphate ion when carbonate ion begins to precipitate?
[phosphate] = M

1) A solution contains 5.72×10-3 M manganese(II) nitrate and 6.51×10-3 M lead acetate. Solid ammonium carbonate is added slowly to this mixture. What is the concentration of lead ion when manganese(II) ion begins to precipitate? [Pb2+] ____= M

2) A solution contains 9.10×10-3 M potassium hydroxide and 1.41×10-2 M potassium cyanide.
Solid zinc acetate is added slowly to this mixture.

What is the concentration of hydroxide ion when cyanide ion begins to precipitate?
[hydroxide] = ___M

*** I'm stuck on both, please help***

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