Question

Daca VOLUMUL in CONDITII NORMALE al C2H6 este egal cu 1,12 L, calculati:
a) NIU (nr de moli)
b) masa (g)
c)Volumul daca presiunea= 0,5 atm si t=273 grade CELSIUS
d) N (atomi)
e) densitatea (g/L) in CONDITII NORMALE

VA ROG AJUTATI-MA

Answer 1

a) n=V/22,4=1,12/22,4=0,05 moli C2H6
b) M C2H6=12*2+6=24+6=30 g/mol
m C2H6=1,5 g C2H6
c) PV=nRT
T=t(in grade celsius)+273=273+273=546 grade Kelvin
V=nRT/P=(0.05*0,082*546)/0,5=4,4772 L
d) densitatea=m/V=1,5/22,4=33,6 g/L