Răspuns:
Explicație:
6moli HNO3
react. cu Ca(OH)2
g,moli Ca(NO3)2
moli H2O
g,moli Ca(OH)2
6moli zg xg yg
2HNO3 + Ca (OH)2 = Ca(NO3 )2 +2 H2 O
2moli 1mol 1mol 2moli
x= 6.1 : 2= 3moli Ca(NO3)2
M= 40 + 2.14 + 6.16=164-------> 164g/moli
m= 3moli . 164 g/moli = 492 g Ca(NO3)2
y= 6 . 2 : 2 = 6 moli H2O
z= 6.1 : 2= 3moli Ca(OH)2
M+ 40 + 2.16 +2 =74------> 74g/moli
m= 3moli. 74g/moli= 222 g Ca(OH)2