Question

Sa se calculeze masa solutiei de HCl de c=36,5% care reactioneaza cu 600g solutie de Ca(OH)2de c=37%

Answer 1

md Ca(OH)2 = 600 * 37/100 = 222 g Ca(OH)2
Ca(OH)2 + 2 HCl ---> CaCl2 + 2 H2O
74 g Ca(OH)2..........2*36,5 g HCl
222 g Ca(OH)2............x g HCl          x = 219 g HCl
ms HCl = 219/36,5 * 100 = 600 g solutie