Question

making of salt solution observation and inference

Answer 1

Answer:

• Put one cup of water and ½ teaspoon of salt into the pot. Put the lid on.
• Boil for 15 minutes with the lid on (set a timer).
• Set the pan aside until cooled to a room temperature.
• Carefully pour the salt and water (normal saline) from the pan into the jar or bottle and put the lid on.

Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions. The amount of a substance that can dissolve in a liquid is called the solubility of the substance.Saline has many uses in medicine. It's used to clean wounds, clear sinuses, and treat dehydration. It can be applied topically or used intravenously. Saline solution is available at your local pharmacy, but it can also be made at home.

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