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a) \(n_{Fe}=\dfrac{28}{56}=0,5\left(mol\right)\)
b) \(n_{Al}=\dfrac{13,5}{27}=0,5\left(mol\right)\)
c) \(n_{CO_2}=\dfrac{11}{44}=0,25\left(mol\right)\)
d) \(m_{O_2}=\dfrac{4,958.0,99}{0,082.\left(273+25\right)}=0,2\left(mol\right)\)
e) \(m_{CH_4}=\dfrac{12,359.0,99}{0,082\left(273+25\right)}=0,5\left(mol\right)\)
a: \(n=\dfrac{28}{56}=0.5\left(mol\right)\)
b: \(n=\dfrac{13.5}{27}=0.5\left(mol\right)\)
\(n_{SO_2}=\dfrac{4,958}{24,79}=0,2(mol)\\ \Rightarrow m_{SO_2}=0,2.64=12,8(g)\)
\(a,n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)
\(n_{CO_2}=0,5.44=11\left(g\right)\)
\(b,n_{NH_3}=\dfrac{10,08}{22,4}=0,45\left(mol\right)\)
\(n_{NH_3}=0,45,17=7,65\left(g\right)\)
\(c,n_{NO_2}=\dfrac{16,8}{22,4}=0,75\left(mol\right)\)
\(n_{NO_2}=0,75.46=34,5\left(g\right)\)
\(a,n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\\ m_{CO_2}=0,25\cdot44=11\left(g\right)\\ b,n_{NH_3}=\dfrac{10,08}{22,4}=0,45\left(mol\right)\\ m_{NH_3}=0,45\cdot17=7,65\left(g\right)\\ c,n_{NO_2}=\dfrac{16,8}{22,4}=0,75\left(mol\right)\\ m_{NO_2}=0,75\cdot46=34,5\left(g\right)\)
\(a.\)
- \(n_{Fe}=\frac{11,2}{56}=0,2\left(mol\right)\)
- \(n_{H2SO4}=\frac{19,6}{98}=0,2\left(mol\right)\)
\(b.\)
- \(n_{SO2}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
\(\Rightarrow m_{SO2}=0,25\times64=16\left(gam\right)\)
- \(n_{H2}=\frac{22,4}{22,4}=1\left(mol\right)\)
\(\Rightarrow m_{H2}=1\times2=2\left(gam\right)\)
a) \(n_{Fe}=\frac{m}{M}=\frac{11,2}{56}=0,2\left(mol\right)\)
\(n_{H_2SO_4}=\frac{m}{M}=\frac{19,6}{98}=0,2\left(mol\right)\)
b) \(n_{SO_2}=\frac{V}{22,4}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
\(\Rightarrow m_{SO_2}=M.n=64.0,25=16\left(g\right)\)
* \(n_{H_2}=\frac{V}{22,4}=\frac{22,4}{22,4}=1\left(mol\right)\)
\(\Rightarrow m_{H_{ }_2}=M.n=2.1=2\left(g\right)\)
\(n_{NH_3}=\dfrac{4,958}{24,79}=0,2(mol)\)