Good thing there are 3\*10^21 atoms of H2O in a water drop | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		daedrdev 20 days ago \| parent \| context \| favorite \| on: A $20 drug in Europe requires a prescription and $... Good thing there are 3*10^21 atoms of H2O in a water drop

Aloisius 20 days ago | [–]

PFAS are expressed as a mass fraction, not mole fraction.

wagwang 20 days ago | [–]

Ok and there are around that many atoms of pfas per tear drop?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact