Răspunsuri

2014-03-23T21:19:54+02:00
C%=md/ms * 100=>md=ms * c/100 = 40 g
ms2=ms1+m apa = 200 + 36,74 g (ro apa = 1g/cm cub)=236,74 g
c%=40/236,74 * 100=16,896 %
cM=(c * ro * 10)/ masa molara NaOH
cM=(16,896 * 12,25 * 10)/40 =>cM=5,17445 mol/litru