How many hydrogens does each of the following compounds have? (a) C8 H7 O2, has two rings and on

step 1 How many hydrogens does each of the following compounds have? We'll use this formula to connect

How many hydrogens does each of the following compounds...

How many hydrogens does each of the following compounds have? (a) $\mathrm{C}_{8} \mathrm{H}_{7} \mathrm{O}_{2},$ has two rings and one double bond (b) $\mathrm{C}_{7} \mathrm{H}_{7} \mathrm{N},$ has two double bonds (c) $\mathrm{C}_{9} \mathrm{H}_{7} \mathrm{NO},$ has one ring and three double bonds

How many hydrogens does each of the following compounds have?
(a) $\mathrm{C}_{8} \mathrm{H}_{7} \mathrm{O}_{2},$ has two rings and one double bond
(b) $\mathrm{C}_{7} \mathrm{H}_{7} \mathrm{N},$ has two double bonds
(c) $\mathrm{C}_{9} \mathrm{H}_{7} \mathrm{NO},$ has one ring and three double bonds

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Degree of Unsaturation

The degree of unsaturation, often referred to as the index of hydrogen deficiency, is a key concept used to determine the number of rings and multiple bonds in an organic molecule. It provides insight into how many hydrogen pairs are missing in comparison to a fully saturated acyclic alkane, allowing chemists to infer the presence and count of double bonds, triple bonds, and rings from a given formula.

Molecular Formula Analysis

Molecular formula analysis involves interpreting the number and type of atoms within a compound to reveal structural information. This analysis often combines the molecular formula with the degree of unsaturation to deduce possible arrangements of atoms, such as the presence of rings, double bonds, or other unsaturated features, which in turn explains discrepancies in expected hydrogen counts.

Structural Features: Rings and Double Bonds

Rings and double bonds are key structural features that reduce the number of hydrogen atoms in a molecule relative to a fully saturated compound. Each ring or double bond removes a pair of hydrogen atoms, and understanding this reduction helps in predicting and rationalizing the number of hydrogens present in compounds, especially when given additional structural details.

Transcript

Please give Ace some feedback