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Can we check salt water by using litmus paper?
Question Date: 2013-02-08
Answer 1:

Litmus paper is usually used to see how acidic or basic something is. The most common type of litmus paper used is yellow, and turns red when something is acidic, and blue if it is basic. But salt water is neutral in terms of acidity and basicity. So the litmus paper will stay yellow because yellow is the color it turns for something neutral.

Answer 2:

That's a good idea, to test water with litmus paper. Litmus paper tells you how much or how little acid is in the water. Acid makes things taste sour. Vinegar and orange juice and lemon juice all have acid in them.

But maybe you want to know how much salt is in the water. One way to do that is to let some water sit in a plate until all the water dries up, and then you can weigh how much stuff is left. It's a little more complicated than that, but that's the general idea.

Best wishes,

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