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\(a.\)
\(n_{Na}=\dfrac{4.6}{23}=0.2\left(mol\right)\)
\(Na+\dfrac{1}{2}Cl_2\underrightarrow{t^0}NaCl\)
\(0.2........0.1........0.2\)
\(V_{Cl_2}=0.1\cdot22.4=2.24\left(l\right)\)
\(m_{NaCl}=0.2\cdot58.5=11.7\left(g\right)\)
\(b.\)
\(n_{Fe}=\dfrac{5.6}{56}=0.1\left(mol\right)\)
\(Fe+\dfrac{3}{2}Cl_2\underrightarrow{t^0}FeCl_3\)
\(0.1.......0.15.......0.1\)
\(V_{Cl_2}=0.15\cdot22.4=3.36\left(l\right)\)
\(m_{FeCl_3}=0.1\cdot162.5=16.25\left(g\right)\)
\(c.\)
\(n_{Cu}=\dfrac{6.4}{64}=0.1\left(mol\right)\)
\(Cu+Cl_2\underrightarrow{t^0}CuCl_2\)
\(0.1......0.1.....0.1\)
\(V_{Cl_2}=0.1\cdot22.4=2.24\left(l\right)\)
\(m_{CuCl_2}=0.1\cdot135=13.5\left(g\right)\)
Bài 1:
a. \(n_{Na}=\dfrac{4,6}{23}=0,2\left(mol\right)\)
\(2Na+Cl_2\rightarrow2NaCl\)
0,2 ...... 0,1 ..... 0,2 (mol)
\(\rightarrow\left\{{}\begin{matrix}V_{Cl_2}=0,1.22,4=2,24\left(l\right)\\m_{NaCl}=0,2.58,5=11,7\left(g\right)\end{matrix}\right.\)
b. \(n_{Fe}=\dfrac{5,6}{56}=0,1\left(mol\right)\)
\(2Fe+3Cl_2\rightarrow2FeCl_3\)
0,1 ...... 0,15 ...... 0,1 (mol)
\(\rightarrow\left\{{}\begin{matrix}V_{Cl_2}=0,15.22,4=3,36\left(l\right)\\m_{FeCl_3}=0,1.162,5=16,25\left(g\right)\end{matrix}\right.\)
c. \(n_{Cu}=\dfrac{6,4}{64}=0,1\left(mol\right)\)
\(Cu+Cl_2\rightarrow CuCl_2\)
0,1 .... 0,1 ..... 0,1 (mol)
\(\rightarrow\left\{{}\begin{matrix}V_{Cl_2}=0,1.22,4=2,24\left(l\right)\\m_{CuCl_2}=0,1.135=13,5\left(g\right)\end{matrix}\right.\)
