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When water is mixed with rubbing alcohol, the two liquids completely dissolve. Are the two liquids miscible, or are they immiscible?

Answer 1

I always read #"miscible"# as #"mixable"#; it means that they are soluble in each other

The longer the alkyl chain of the alcohol, the less soluble the alcohol in water. Methanol and ethanol are infinitely miscible in water, Even though #Pr^(i)OH# is a #2""^@# alcohol, the alkyl chain is sufficiently short to allow significant water solubility.

In the laboratory, bulk isopropyl alcohol or #"IPA"# as it is called, is used as a solvent for potassium hydroxide to make a very powerful cleaning agent for glassware. #KOH# goes up slowly, but the bath will dissolve silicone grease.

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Answer 2

Ava Andrews

The two liquids, water and rubbing alcohol, are miscible.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.