Câu 1
\(m_{HNO_3}=0,3.63=18,9\left(g\right)\)
\(m_{CuSO_4}=1,5.160=240\left(g\right)\)
\(m_{AlCl_3}=2.133,5=267\left(g\right)\)
Câu 2
a) \(V_{N_2}=3.22,4=67,2\left(l\right)\)
\(V_{H_2}=0,45.22,4=10,08\left(l\right)\)
\(V_{O_2}=0,55.22,4=12,32\left(l\right)\)
b) \(V_{hh}=\left(0,25+0,75\right).22,4=22,4\left(l\right)\)