A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? (density of water = 1.0 g/cm3)
Step 1 of 3
The volume of one drop of water = 0.05 mL
It is known that the density of water is one, the mass is 0.05g. The molar mass of water is 18.0g/mol.
This means there is one mole of water in 18.0gm.
One mole = 6.02 1023 molecules.
Then the conversion of grams into number of atoms = 0.05 g 18.0g 6.02 1023 molecules
= 1.67 1021 molecules.
Textbook: Introductory Chemistry
Author: Nivaldo J Tro
This full solution covers the following key subjects: Water, Drop, Density, contain, Molecules. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. The full step-by-step solution to problem: 105P from chapter: 6 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. Since the solution to 105P from 6 chapter was answered, more than 404 students have viewed the full step-by-step answer. The answer to “A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? (density of water = 1.0 g/cm3)” is broken down into a number of easy to follow steps, and 24 words.