Question

calculati masa de acid clorhidric de concentratie 36.6% obtinuta in urma reactiei dintre amoniac si 400g solutie clorura de metil de concentratie 40 %

Answer 1

C=md/ms*100=>md=C*ms/100=40*400/100=160g CH3Cl

MCH3Cl=50,5g/mol

n=m/M=160/50,5=3,16831 moli CH3Cl

CH3Cl + NH3 -> CH3-NH2 + HCl

nCH3Cl=nHCl=3,16831 moli

md HCl = 36,5*3,16831=115,643g

C=md/ms*100 => ms=md*100/C=115,643*100/36,6=315,966g sol. HCl