From the skeptical chemist:
ACS: Avogadro’s out
The ACS Nomenclature commitee plans to get rid of 6.0221415 × 1023, or better to relate it to the Planck Constant (h) and other fundamental numbers. How? My guess is as good as yours, but I put my money on the relation between the gas constant R and the Boltzmann constant kB:
