Respostas

2014-07-18T14:11:16-03:00
8 g---------44 g
x g---------8,8g

 \\  \\ 44x=8.8,8 \\  \\ x= \frac{70,4}{44}  \\  \\ \boxed{\boxed{ x=1,6\,g\,de\,NH_4NO_3}}