Problem: Very small crystals composed of 1000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices.. (c) The density of germanium is 5.325 g/cm3 . If you made a 9 nm quantum dot of germanium, how many Ge atoms would it contain? Assume the dot is spherical. Express your answer using four significant figures.

FREE Expert Solution

We are asked how many Ge atoms contain a 9 nm quantum dot of germanium.


Calculate volume: 

V =16πd3V =16π(9 nm)3

V =  381.7 nm3


View Complete Written Solution
Problem Details

Very small crystals composed of 1000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices.. (c) The density of germanium is 5.325 g/cm3 . If you made a 9 nm quantum dot of germanium, how many Ge atoms would it contain? Assume the dot is spherical. Express your answer using four significant figures.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.