Practice Molecule in Chemistry
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
The smallest unit of a covalent substance, consisting of two or more atoms held together by chemical bonds (typically covalent), acting as a single distinct particle with specific chemical properties.
Atoms stuck together. Water (\text{H}_2\text{O}) is one molecule with 3 atoms.
Example 1
easyDefine a molecule and explain the difference between a molecule of an element and a molecule of a compound.
Example 2
mediumThe molecular formula of glucose is \text{C}_6\text{H}_{12}\text{O}_6. How many total atoms are in one molecule of glucose? How many molecules are in one mole of glucose?
Example 3
mediumHow many atoms are in one molecule of \text{C}_6\text{H}_{12}\text{O}_6 (glucose)? How many molecules are in 1 mole of glucose?
Example 4
mediumExplain why \text{O}_2 and \text{O}_3 (ozone) are both molecules of the same element but have different properties.
Example 5
hardA molecule of aspirin has the formula \text{C}_9\text{H}_8\text{O}_4. Calculate the total number of atoms in one molecule, the molar mass, and the number of hydrogen atoms in 0.50 mol of aspirin.