# 1.6: Experiment 5 - Nomenclature

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Learning Objectives

By the end of this lab, students should be able to:

• Name mono- and polyatomic ions, according to IUPAC rules.
• Differentiate between ionic and covalent compounds and their naming conventions, according to IUPAC rules.
• Convert between the formula of a compound and its name, vice versa.
• Identify and name weak and strong acids.

Prior knowledge:

Chemical Nomenclature is a set of rules that was developed to ensure generation of systematic names for chemical compounds. In other words, we need to follow nomenclature rules to make sure that we use the same name for the same compounds so other people can understand us. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

Deeper Look

Ionic compounds consist of cation (positively charged) and anions (negatively charged) that are held together by electrostatic attraction. Most of the time in an ionic compound you will find a metal bonded to non-metal. These compounds can be made out of monoatomic or polyatomic ions.

Covalent compounds are two or more non-metals that are held together by covalent bonds. Acids are also covalent compounds.

Molecular formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs. When multiple atoms are held together by covalent bonds they form a single chemical entity, which we call a molecule. As postulated in Dalton's atomic theory, the ratio of the atoms of the different elements are whole numbers, and this can be described by the molecule's molecular formula.

## Procedure

### Nomenclature Worksheet

This is a one period lab and you will be asked to work in Zoom Breakout Rooms to complete your Individual assignment. Your assignment will consist of 7 parts. Tasks will include naming mono- and polyatomic ions, writing chemical formulas from ions, writing chemical formulas from compounds' names, naming compounds and writing ions they consists of, naming acids and writing formulas of acids.

Interactive Element

### Practice Exercises

You can use this worksheet to practice before the lab. The key is posted here. Use the quiz below to practice activities below to help you with this topic.

Quiz