Why doesn\'t the presence of other metal ions from the dissolved brass sample in

Question

Why doesn't the presence of other metal ions from the dissolved brass sample interfere with the quantitative analysis of copper in this experiment? Select the number for the answer that best answers the question.

1. The presence of any other dissolved ions does not interfere with the quantitative copper determination because all of the other ions are not soluble.

2. The presence of other dissolved ions does not interfere with the quantitative copper determination because the other ions form red-colored species when oxidized.

3. The presence of other dissolved ions does not interfere with the quantitative copper determination because none of the other ions form a colored species when oxidized.

4. The presence of other dissolved ions does not interfere with the quantitative copper determination because they are soluble in the final aqueous solution.

Explanation / Answer

Answer:-

4. The presence of other dissolved ions does not interfere with the quantitative copper determination because they are soluble in the final aqueous solution.

Because the copper got precipitated in the final solution so the other metal ions donot interfere in the quantitatively measurement of copper.

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