Question

how to prepare concentrated salt solution​

Answer 1

Answer:

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