A question regarding the definition of acids and bases

AI Thread Summary
The discussion centers on the definitions of acids and bases as outlined in an inorganic chemistry textbook, specifically noting that acids produce H+ ions and bases produce OH- ions in dilute aqueous solutions. The original poster questions whether substances like pure HCl gas and NaOH pellets can be classified as acids and bases, respectively, even before they react in water. The response confirms that this classification is correct according to the provided definition, but also highlights that definitions can vary depending on the context, referencing alternative theories such as Lewis, Arrhenius, and Bronsted-Lowry. The conversation emphasizes the importance of understanding different definitions in chemistry.
Dong Aleta
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Hi!

I just read in an inorganic chemistry book (by Whitten, et al.) that acids are defined as substances that produce H+ ions in dilute aqueous solutions, and bases are those that produce OH-. To me, this definition implies that a substance that has yet to produce an H+ or an OH- can already be called an acid or base, respectively. Meaning, pure HCl gas that is yet to be bubbled in water can already be called an acid, and a pure NaOH pellet that is yet to be dissolved in water can already be called a base.

Is this correct? Thanks!
 
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Dong Aleta said:
Hi!

I just read in an inorganic chemistry book (by Whitten, et al.) that acids are defined as substances that produce H+ ions in dilute aqueous solutions, and bases are those that produce OH-. To me, this definition implies that a substance that has yet to produce an H+ or an OH- can already be called an acid or base, respectively. Meaning, pure HCl gas that is yet to be bubbled in water can already be called an acid, and a pure NaOH pellet that is yet to be dissolved in water can already be called a base.

Is this correct? Thanks!

Is is correct in the sense of the definition you gave, but definitions of acids and bases can vary with context, and another teacher or scientist might disagree.
 
Dr. Courtney said:
Is is correct in the sense of the definition you gave, but definitions of acids and bases can vary with context, and another teacher or scientist might disagree.
I see! I was just curious about this one. But thanks so much for the answer!
 
Look up the basic definitions of acids; Lewis, Arrhenius and Bronsted-Lowry.
 
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