Conversion problems...?

Question

What do you get if you convert 30 micrograms/m^3 to:
1) molecules/cm^3
2) ppm
3) ppb

What is the percentage of 1.3g/L or 1.3g/cm^3 ?

Answer 1

That depends on what the molecules are.

When you re-ask the question, Chemistry is a better place for it.