Răspuns:
Explicație:
Hristos a inviat!
c/100=md/ms⇒md=c×ms/100=20×10/100=2 g HCl
M HCl=36,5 g/mol
M H₂O=18 g/mol
M NaCl=58,5 g/mol
2 a b
HCl + NaOH → NaCl + H₂O
36,5 58,5 18
a=2×58,5/36,5=3,2g NaCl, n=m/M=3,2/58,5=0,05 moli
b=2×18/36,5=0,98g H₂O , n=m/M=0,98/18=0,054 moli