Răspunsuri

2014-05-06T16:07:46+03:00
C%=md/ms * 100 =>md=200*10/100=20 g KOH
56 g KOH.......1 g H
20 g KOH..........x g H         x = 0,35714 g H deci raspunsul b
Sti ca in masa molara a KOH se afla 1 g H deci in masa de KOH calculata din concentratie se afla x g H.