SOLVED:A 20.0-L tank contains 4.86 ×10^-^4 kg of helium at 18.0^. The molar mass of helium is 4.00 g/mol. (a) How many moles of helium are in the tank? (b) What is
Heliu - Wikipedia
Un amestec format din mHe=3,2 kg de He (niuHe=4g/mol) si mNe=4kg de Ne (niu Ne=20g/mol) se afla intr-un vas - Brainly.ro
Exercise: Coeficienți calorici. Consolidare. Partea I