Answer to Question #132931 in Chemistry for asd

Question #132931

How many molecules of water are there in 72g of H2O

Expert's answer

M (H₂O) = 18 g/mol

n (H₂O)=m/M=72/18=4 moles

Each mole of matter contains 6.022×10²³ molecules.

Number of molecules in 72 g of water is:

6.022×10²³ x 4 = 24.088 ×10²³ molecules

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. The density of ammonia gas under certain conditions 0.505 g/L. Calculate its density in g/cm3.
2. where do people and other animals get energy to move around?
3. Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations
4. Describe different modes through which cell membrane controls the transport of ingoing and outgoing
5. Why the need to achieve EQUILIBRIUM?
6. With the help of an example explain the significance of coupling in biological reactions.
7. While performing an experiment of finding out the saponification value of fat, he notes the volume o