PV = nRT
P = 1,8 atm , V = 400 L, t = 327oC
T = 273+t = 273+327 = 600 K
a)
n = PV/RT = 1,8x400/0,082x600
= 14,63 moli HCl
b)
1 mol din orice gaz contine 6,022x10la23 molecule
1 mol HCl.......................... 6,022x10la23 molecule
14,63 moli HCl.................. a = 88,102x10la23 molecule HCl