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what is used to test for the presence of salt in water

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11y ago

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How do you test for salt in the lab?

To test for salt (sodium chloride) in the lab, you can perform a simple solubility test by dissolving the sample in distilled water and then using a conductivity meter to measure the solution's conductivity, as salt ions increase conductivity. Alternatively, you can add a few drops of silver nitrate solution to the dissolved sample; if a white precipitate of silver chloride forms, it indicates the presence of chloride ions, confirming the presence of salt.


Add a drop of silver nitrate to both a distilled water test tube and to the test tube containing the salt solution in the test tube. What do you observe?

Should be a white precipitate. Indicative of the presence of either Na or Mg. Wrong again people. Silver Nitrate is used to test for the presence of chloride ions. Such as those in your salt a.k.a sodium chloride and yes adding silver nitrate to your salt solution will create a white precipitate.


Mention and explain two test for the presence of water?

One test for the presence of water is the cobalt chloride paper test, where a piece of paper treated with cobalt chloride changes from blue to pink in the presence of water. Another test involves using an anhydrous metal salt, like anhydrous copper(II) sulfate, which turns from white to blue when it absorbs water molecules.


What is mohr's salt test?

Mohr's salt test is a chemical test used to detect the presence of chloride ions in a solution. It involves adding a silver nitrate solution to the sample, which forms a white precipitate of silver chloride if chloride ions are present. The formation of the precipitate confirms the presence of chloride ions in the solution.


Is biuret test suitable to test the presence of proteins in the urine?

Yes, the biuret test will indicate the presence of peptides. If it turns violet, it is a positive result.


What are 3 ways you could determine in the lab if a solution had salt dissolved in it without tasting?

You could use a conductivity meter to test for the presence of ions in the solution, perform a flame test to observe characteristic colors produced when salt is burned, or use a pH indicator to detect a change in pH level caused by the presence of salt ions.


State a test for the presence of hydrogen?

The burning splint test is used to test for the presence of hydrogen. The symbol for hydrogen is H.


What is a test for presence of coch3 group?

One common test for the presence of a -COCH3 group is the 2,4-dinitrophenylhydrazine (Brady's) test. In this test, the compound is treated with 2,4-dinitrophenylhydrazine in the presence of acid to form a yellow to orange precipitate, indicating the presence of a ketone or aldehyde functional group.


What qualitative test should be done to test the presence of Vitamin A?

A blood test needs to be done to test for the presence of Vitamin A. If you have a Vitamin A deficiency, you may be anemic.


What does a positive presence-absence test indicate?

The Presence-Absence (P-A) test is a presumptive detection for coliforms.


How you might test a sample of an unknown white solid to determine if it was table salt sodium chloride?

One way to test for table salt (sodium chloride) is to conduct a flame test. When the sample is heated in a Bunsen burner flame, table salt imparts a yellow color to the flame. Another test is to perform a solubility test by dissolving the sample in water; table salt is highly soluble in water, producing a clear solution. Finally, you can test for the presence of chloride ions using silver nitrate solution, which forms a white precipitate of silver chloride.


How can you find out if salt is acidic or basic with the help of turmeric powder?

Turmeric powder is commonly used as an indicator. When added to a substance, it turns red in the presence of a base and yellow in the presence of an acid. To test if salt is acidic or basic, mix a small amount of turmeric powder with water and add a pinch of the salt. If the turmeric turns red, the salt is basic; if it turns yellow, the salt is acidic.