Question

What is role of the product washing by water and ethanol and ether​

Answer 1

Answer:

The purpose of washing with these solvents is to most likely to remove certain impurities based on their solubility in these solvents. ... As you can see, the procedure is pretty much the same, but only water is used to wash the precipitated product.

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Answer 2

Answer:

The purpose of washing with these solvents is to most likely remove certain impurities based on their solubility in these solvents. ... As you can see, the procedure is pretty much the same, but only water is used to wash the precipitated product.

Explanation:

because precipitation in 100% ethanol cause removal of all water molecule from DNA and Complete Dehydration, which make them not soluble, So we give 70% wash to let it retain some water molecule when making it soluble.

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