Question

Reactioneaza 240 g solutie de soda caustica cu concentratia de 5% cu o solutie de acid
clorhidric.
Verifica daca s-au consumat 300g de solutie de acid clorhdric de concentratie 3,65%.
Va rog dati-mi repede raspunsul!!!E urgenttttt!!!!!!!

Answer 1

40        36,5
NaOH+HCl rezulta NaCl+H2O
12 g     x

C=md/ms*100 rezulta md=C*ms/100=5*240/100=12 g NaOH
x=36,5*12/40=10,95g HCl(md)

C=md/ms*100 rezulta ms=md*100/C=10,95*100/3,65=300 g sol HCl