How to Name Acids Using Polyatomic and Monoatomic Rules

TL;DR

To name acids, replace the suffix of polyatomic ions ending in 'ate' with 'ic' and add 'acid', while for those ending in 'ite', use 'ous'. For monoatomic ions ending in 'ide', add the prefix 'hydro', followed by the element's name and 'ic'. For example, H2SO4 is sulfuric acid, and H2S is hydrosulfuric acid.

Transcript

in this video we're going to focus on naming acids so let's say if you want to name h2so4 how would you do it well first you need to know some rules if it contains a polyatomic ion with the word a all you need to add is ick if it has a polyatomic ion with the word i replace it with the suffix s and add the word acid at the end by the way now if it'... Read More

Key Insights

• 😑 Naming acids requires understanding the rules for polyatomic ions and monoatomic ions.
• 📅 Acids with polyatomic ions ending in "ate" have the suffix replaced with "ic" and add "acid" at the end.
• ❔ Acids with polyatomic ions ending in "ite" change the "ite" suffix to "ous" and add "acid."
• 🪪 Acids with monoatomic ions ending in "ide" use the prefix "hydro," followed by the element's name with "ic" as the suffix.
• ❓ Hydrocyanic acid is an exception, as it uses the prefix "hydro" and the cyanide polyatomic ion.
• 💁 Phosphoric acid is formed by combining the phosphate polyatomic ion and three hydrogen ions.
• 😑 Carbonic acid results from bonding the carbonate polyatomic ion with two hydrogen ions.

Questions & Answers

Q: How do you name an acid with a polyatomic ion ending in "ate"?

To name such an acid, replace the "ate" suffix with "ic" and add the word "acid" at the end. For example, H2SO4 is named sulfuric acid.

Q: How are acids with polyatomic ions ending in "ite" named?

Acids with polyatomic ions ending in "ite" are named by replacing the "ite" suffix with "ous" and adding "acid." For instance, H2SO3 is called sulfurous acid.

Q: What is the naming convention for acids with monoatomic ions ending in "ide"?

To name acids with monoatomic ions ending in "ide," you need to add the prefix "hydro," followed by the element's name and the suffix "ic." For example, H2S is called hydrosulfuric acid.

Q: How do you name an acid with the polyatomic ion "clo4"?

The polyatomic ion "clo4" is called perchlorate, so the acid's name would be perchloric acid. Remember to replace the "ate" suffix with "ic."

Summary & Key Takeaways

• To name acids containing a polyatomic ion ending in "ate," replace the suffix with "ic" and add the word "acid" at the end. For example, H2SO4 is named sulfuric acid.

• Acids with a polyatomic ion ending in "ite" are named by replacing the suffix with "ous" and adding "acid." H2SO3 is called sulfurous acid.

• Acids with a monoatomic ion ending in "ide" require the prefix "hydro," followed by the element's name and the suffix "ic." H2S is called hydrosulfuric acid.