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Will the percentage of chloride in your unknown increase, decrease, or remain unchanged if these...

Question:

Will the percentage of chloride in your unknown increase, decrease, or remain unchanged if these problems occur:

The silver chloride wasn't completely dry when the final weighing was made.

The unknown sample contained traces of moisture when it was weighed.

The precipitated silver chloride was exposed to excessive light while it was drying.

Gravimetric Analysis:

Gravimetric analysis is an analytical technique that works under the principle that for pure compounds, the mass of their constituent ions can be determined. It can be categorized into four different types, namely volatilization, precipitation, electrogravimetry, and thermogravimetric. For the analysis to be precise and accurate, the desired ion to be analyzed must be a pure compound that can be precipitated completely and easily out of the sample.

Answer and Explanation: 1

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The silver chloride wasn't completely dry when the final weighing was made.

  • If the silver chloride had traces of water, the final weight of AgCl will...

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What is Precipitation? - Definition, Types & Formation

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Chapter 19 / Lesson 8
50K

What is precipitation? Learn the definition, formation, types, and examples of precipitation. Also, learn the meaning of the term precipitate.


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