\(n_{Al}=\dfrac{6.75}{27}=0.25\left(mol\right)\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(0.25....................0.25......0.375\)
\(m_{AlCl_3}=0.25\cdot133.5=33.375\left(g\right)\)
\(V_{H_2}=0.375\cdot22.4=8.4\left(l\right)\)
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