In the area of nano-chemistry,particles defined as nanoparticles range in size from 1-2500 nm.1 nm is equivalent to 1 × 10^-9 m.If the size of the particles that make up a particular material is 1.23 × 10^-8 cm,what is this size in nanometers? A)12,300 nm B)1.23 nm C)0.123 nm D)1230 nm E)123 nm

Question

Quizplus · Accepted Answer

To convert cm to nm, we need to multiply the value by 10^7 (since 1 cm = 10^7 nm).

1.23 × 10^-8 cm = 1.23 × 10^-8 × 10^7 nm 
= 1.23 × 10^-1 nm 
= 0.123 nm

Therefore, the size of the particles is 0.123 nm, which is closest to answer choice C.

In the Area of Nano-Chemistry,particles Defined as Nanoparticles Range in Size