Răspunsuri

2014-09-14T17:58:38+03:00
C%=md/ms*100=>md=ms*c/100=10000*5/100=500 g NaCl
Na + 1/2 Cl2 ---> NaCl
23 g Na...........1/2 * 2 * 35,5 g Cl2...........58,5 g NaCl
x g Na..................y g Cl2......................500 g NaCl
x = 196,58 g Na
y = 303,41 g Cl2

2 5 2