Which of the following techniques can be used to identify metal cations in a sol

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Question: Which of the following techniques can be used to identify metal cations in a solution?

Options:

Correct Answer: UV-Vis Spectroscopy

Solution:

UV-Vis Spectroscopy can be used to identify metal cations based on their characteristic absorbance spectra.

Which of the following techniques can be used to identify metal cations in a solution?

Which of the following techniques can be used to identify metal cations in a solution?

Step 1: Understand that metal cations are positively charged metal ions in a solution.
Step 2: Learn about UV-Vis Spectroscopy, which is a technique that uses ultraviolet and visible light to analyze substances.
Step 3: Know that different metal cations absorb light at specific wavelengths, creating a unique pattern called an absorbance spectrum.
Step 4: Prepare the solution containing the metal cations you want to identify.
Step 5: Use a UV-Vis Spectrophotometer to shine light through the solution and measure how much light is absorbed at different wavelengths.
Step 6: Compare the absorbance spectrum obtained from the solution to known spectra of various metal cations to identify which metal is present.

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