\(n_{Zn}=\dfrac{13}{65}=0.2\left(mol\right)\)
\(Zn+H_2SO_4\rightarrow ZnSO_4+H_2\)
\(0.2.........0.2.............0.2\)
\(m_{ZnSO_4}=0.2\cdot161=32.2\left(g\right)\)
\(V_{dd_{H_2SO_4}}=\dfrac{0.2}{0.5}=0.4\left(l\right)\)
\(a) Zn + H_2SO_4 \to ZnSO_4 + H_2\\ n_{ZnSO_4} = n_{H_2SO_4} = n_{Zn} = \dfrac{13}{65} = 0,2(mol)\\ m_{ZnSO_4} = 0,2.161 = 32,2(gam)\\ b) V_{dd\ H_2SO_4}= \dfrac{0,2}{0,5} = 0,4(lít)\)
a. Ta có nZn= \(\dfrac{13}{65}=0,2\left(mol\right)\)
PTHH: Zn+H2SO4--->ZnSO4+H2
=> nZn=nZnSO4=0.2mol
=> mZnSO4=0,2* 161=32.2(g)
b. Theo pthh trên, nZn=nH2SO4=0.2 mol
=> VH2SO4= 0.2:0.5= 0,4(lít)