Question

dau coroana!!!!plssss​

Answer 1

Răspuns:

Explicație:

2HNO3 + Ca(OH)2 ⇒ Ca(NO3)2 + 2H2O

5 moli HNO3

2 moli HNO3....................1 mol Ca(NO3)2

5 moli...........................x = 5*1/2 = 2,5 moli Ca(NO3)2

M Ca(NO3)2 = 164 g/mol

2,5*164 = 410 g Ca(NO3)2

____________

2 moli HNO3....................2 moli H2O

5 moli.................................y = 5*2/2 = 5 moli H2O

____________

2 moli HNO3....................1 mol Ca(OH)2

5 moli..............................x = 5*1/2 = 2,5 moli Ca(OH)2

M Ca(OH)2 = 74 g/mol

2,5*74 = 185 g Ca(OH)2