Răspuns:
date necesare
miuKNO3= 101g/mol
miuHNO3=63g/mol
2mol..................................2mol sau, in grame
2KNO3 + H2SO4----> 2HNO3 + K2SO= m,4
2x101g.............................2x63g
80,8g......................x
x=m,teoretic=50,4gHNO3
randament= m,practicax100/m,teoretica--->
m,pr= 50,4x94/100g=47,4gHNO3
Explicație:
