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AP® Chemistry

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Moderate

Particulate Analysis of Lab

APCHEM-ZNENLO

A student performs a gravimetric analysis of an unknown alkali metal bromide solution by mixing the unknown with excess silver nitrate solution. The student collects the resulting silver bromide precipitate through filtration, dries it, and records the mass of the precipitate.

During the course of the experiment, which of the following happens to the nitrate ions?

A

The nitrate ions react with the unknown metal ions and are decomposed.

B

The nitrate ions are oxidized by the bromine ions.

C

The nitrate ions react with the unknown metal ions, creating a solid product.

D

The nitrate ions remain dissolved in the filtrate.