# A 6.00 mL ampule of a 0.110 M solution of naphthalene in hexane is excited with a flash of light. The naphthalene emits 19.9 J of energy at an average wavelength of 349 nm. What percentage of the naphthalene molecules emitted a photon?

Question
22 views

A 6.00 mL ampule of a 0.110 M solution of naphthalene in hexane is excited with a flash of light. The naphthalene emits 19.9 J of energy at an average wavelength of 349 nm. What percentage of the naphthalene molecules emitted a photon?

check_circle

Step 1

Molarity is defined as moles per liter. So, number of moles and hence the number of molecules in 0.110 M solution can be calculated as:

Step 2

The number of molecules(x) in the emission can be calculated as:

Step 3

Percentage of number of molec...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

### Chemistry 