* Với MgO
- , nMgO = 0,5 (mol) \(\Rightarrow\left\{{}\begin{matrix}n_{Mg}=0,5\left(mol\right)\\n_O=0,5\left(mol\right)\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}m_{Mg}=12\left(g\right)\\m_O=8\left(g\right)\end{matrix}\right.\)
* Với CaCO3
nCaCO3= 0,5 (mol)
\(\left\{{}\begin{matrix}n_{Ca}=0,5\left(mol\right)\\n_C=0,5\left(mol\right)\\n_O=1,5\left(mol\right)\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}m_{Ca}=20\left(g\right)\\m_C=6\left(g\right)\\m_O=1,5.16=24\left(g\right)\end{matrix}\right.\)
* Với H2SO4
nH2SO4 = 0,5 (mol)
\(\Rightarrow\left\{{}\begin{matrix}n_H=1\left(mol\right)\\n_S=0,5\left(mol\right)\\n_O=2\left(mol\right)\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}m_H=1\left(g\right)\\m_S=16\left(g\right)\\m_O=16.2=32\left(g\right)\end{matrix}\right.\)
* Với CuO
nCuO = 0,5 (mol)
=> \(\left\{{}\begin{matrix}n_{Cu}=0,5\left(mol\right)\\n_O=0,5\left(mol\right)\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}m_{Cu}=32\left(g\right)\\m_O=8\left(g\right)\end{matrix}\right.\)