Question

Vă rog ambele probleme dau corona

Answer 1

1/.

V.nh3 = 2,8 L

niu = V/V.molar = 2,8/22,4 = 0,125 moli NH3

Vs.initial = 500 mL = 0,5 L, Vs.final = 1 L

=> 0,125 moli NH3 ........................ 0,5 L

       x moli NH3 ............................. 1

      = 0,25 moli NH3

2/.

stim ca Cm = roxc%x10/miu

miu.NaOH = 40 g/mol

=> Cm = 1,22x20x10/40 = 6,1 M