What is the mass of one water molecule?
Understand the Problem
The question is asking for the mass of a single water molecule, which involves understanding its molecular composition and calculating its mass based on atomic weights.
Answer
2.988 × 10^-23 grams
The mass of one molecule of water is approximately 2.988 × 10^-23 grams.
Answer for screen readers
The mass of one molecule of water is approximately 2.988 × 10^-23 grams.
More Information
The molar mass of water (H2O) is 18.01 grams per mole. One mole contains Avogadro's number of molecules, which is approximately 6.022×10^23 molecules. By dividing 18.01 grams by 6.022×10^23, we get approximately 2.988 × 10^-23 grams for one molecule of water.
Tips
A common mistake is not using Avogadro's number correctly when converting molar mass to the mass of a single molecule. Ensure the units are consistent throughout the calculation.
Sources
- Calculate the Mass in Grams of a Single Water Molecule - sciencenotes.org
- Solved Calculate the mass of one water molecule in kg. | Chegg.com - chegg.com
