Răspunsuri

2014-09-16T21:35:48+03:00
Nr moli = masa acid/masa molara acid
=> masa acid = 2*98 = 196 g H2SO4
ms = md+m apa = 196+600 = 796 g solutie
c% = md/ms * 100 = 196/796 * 100 = 24,623%
1 5 1