please help!
You are given an unknown, colorless, solution that may contain only one salt from the following set: NaA, NaB, NaC. In solution each salt dissociates completely into the Na+ ion and the anion A-, B-, or C-, whose properties are A is green, B is yellow, and C is red. The Na+ ion is effectively inert. Given the availability of solutions of A, B, and C, develop a simple procedure for identifying the salt that is present in your unknown.
To identify the salt present in the unknown solution, you can follow these steps:
1. Prepare separate solutions of NaA, NaB, and NaC salts in distilled water.
- Dissolve a small amount of each salt in separate beakers or test tubes filled with distilled water. Label them as NaA, NaB, and NaC.
2. Take a small sample of the unknown solution in a clean beaker or test tube.
- Ensure that the beaker or test tube is clean and dry before adding the unknown solution.
3. Add a few drops of solution A to the unknown solution.
- Observe the color change in the mixture.
- If the unknown solution turns green, it contains NaA salt.
- If there is no color change, proceed to the next step.
4. Add a few drops of solution B to the unknown solution.
- Observe the color change in the mixture.
- If the unknown solution turns yellow, it contains NaB salt.
- If there is no color change, proceed to the next step.
5. Add a few drops of solution C to the unknown solution.
- Observe the color change in the mixture.
- If the unknown solution turns red, it contains NaC salt.
- If there is no color change, it does not contain any of the salts A, B, or C.
By systematically adding small amounts of solutions A, B, and C to the unknown solution, you can identify which salt is present based on the observed color change. Remember to handle these solutions safely and properly dispose of any waste generated during the process.
To identify the salt present in the unknown solution, you can perform a simple procedure involving the use of the solutions of A, B, and C. Here's a step-by-step guide:
1. Begin by obtaining three test tubes labeled A, B, and C.
2. Place a small amount of the unknown solution in each test tube, making sure to add an equal volume to each tube.
3. To the test tube labeled A, add a small amount of solution A. Do the same with test tubes B and C, adding solution B to B and solution C to C.
4. Observe the color changes in each test tube after mixing the solutions.
5. If the unknown solution turns green when mixed with solution A, then the salt present is NaA. This is because only NaA produces a green solution when mixed with A.
6. If the unknown solution turns yellow when mixed with solution B, then the salt present is NaB. NaB is the only salt that produces a yellow solution when mixed with solution B.
7. If the unknown solution turns red when mixed with solution C, then the salt present is NaC. NaC is the only salt that produces a red solution when mixed with solution C.
By comparing the color changes in the test tubes, you will be able to identify which salt from the set (NaA, NaB, or NaC) is present in the unknown solution.