Răspuns :
ms = 3 kg
md = ?
c = 20 %
c = md * 100 supra ms
20 = md * 100 supra 3 kg
20* 3 = md * 100
60 = md * 100
md = 60 : 100
md = 1, (6)
md = ?
c = 20 %
c = md * 100 supra ms
20 = md * 100 supra 3 kg
20* 3 = md * 100
60 = md * 100
md = 60 : 100
md = 1, (6)
c=md/ms*100
md=c*ms/100=20*3000/100=600g NaCl
n=md/M
Masa Nacl=58,5
n=600/58,5=10,25 moli
md=c*ms/100=20*3000/100=600g NaCl
n=md/M
Masa Nacl=58,5
n=600/58,5=10,25 moli